| year | region | |
|---|---|---|
| 1980 | 36.5 | |
| 1981 | 36.5 | |
| 1982 | 35.1 | |
| 1983 | 35.6 | |
| 1984 | 36.1 | |
| 1985 | 36.4 | |
| 1986 | 35.1 | |
| 1987 | 35.4 | |
| 1988 | 35.1 | |
| 1989 | 34.3 | |
| 1990 | 33.8 | |
| 1991 | 32.1 | |
| 1992 | 31.2 | |
| 1993 | 30.2 | |
| 1994 | 29.6 | |
| 1995 | 29.8 | |
| 1996 | 29.8 | |
| 1997 | 30.5 | |
| 1998 | 28.6 | |
| 1999 | 29.7 | |
| 2000 | 30.4 | |
| 2001 | 30.4 | |
| 2002 | 30.7 | |
| 2003 | 29.4 | |
| 2004 | 29.3 | |
| 2005 | 29.9 | |
| 2006 | 29.4 | |
| 2007 | 30.5 | |
| 2008 | 28.4 | |
| 2009 | 28.4 | |
| 1980 | 8.7 | |
| 1981 | 9.3 | |
| 1982 | 9.1 | |
| 1983 | 9.6 | |
| 1984 | 9.7 | |
| 1985 | 10 | |
| 1986 | 11.7 | |
| 1987 | 11.7 | |
| 1988 | 11.9 | |
| 1989 | 11.6 | |
| 1990 | 11.2 | |
| 1991 | 10.9 | |
| 1992 | 10.3 | |
| 1993 | 10 | |
| 1994 | 10.4 | |
| 1995 | 10.5 | |
| 1996 | 11 | |
| 1997 | 10.7 | |
| 1998 | 15.1 | |
| 1999 | 18.3 | |
| 2000 | 18.3 | |
| 2001 | 17.8 | |
| 2002 | 17.6 | |
| 2003 | 16.8 | |
| 2004 | 16.6 | |
| 2005 | 17.1 | |
| 2006 | 27.7 | |
| 2007 | 28.2 | |
| 2008 | 33.2 | |
| 2009 | 33.2 | |
| 1980 | 47.2 | |
| 1981 | 57 | |
| 1982 | 57 | |
| 1983 | 57.1 | |
| 1984 | 56.4 | |
| 1985 | 55.6 | |
| 1986 | 54.9 | |
| 1987 | 54.1 | |
| 1988 | 53 | |
| 1989 | 52 | |
| 1990 | 51.3 | |
| 1991 | 50.9 | |
| 1992 | 51.2 | |
| 1993 | 50.8 | |
| 1994 | 49.8 | |
| 1995 | 48.8 | |
| 1996 | 48.5 | |
| 1997 | 47.8 | |
| 1998 | 21.6 | |
| 1999 | 21.5 | |
| 2000 | 20.2 | |
| 2001 | 18.8 | |
| 2002 | 17.2 | |
| 2003 | 16 | |
| 2004 | 14.8 | |
| 2005 | 13.7 | |
| 2006 | 12.8 | |
| 2007 | 12.2 | |
| 2008 | 11.9 | |
| 2009 | 11.7 | |
| 1980 | 2.5 | |
| 1981 | 2.2 | |
| 1982 | 1.9 | |
| 1983 | 2.4 | |
| 1984 | 2.3 | |
| 1985 | 2.2 | |
| 1986 | 2.2 | |
| 1987 | 2.2 | |
| 1988 | 2.3 | |
| 1989 | 2.2 | |
| 1990 | 1.6 | |
| 1991 | 1.7 | |
| 1992 | 2 | |
| 1993 | 2.2 | |
| 1994 | 2.3 | |
| 1995 | 2.4 | |
| 1996 | 2.6 | |
| 1997 | 2.6 | |
| 1998 | 2.8 | |
| 1999 | 3.1 | |
| 2000 | 3 | |
| 2001 | 2.9 | |
| 2002 | 2.8 | |
| 2003 | 2.7 | |
| 2004 | 2.5 | |
| 2005 | 2.2 | |
| 2006 | 2.6 | |
| 2007 | 2.6 | |
| 2008 | 2.5 | |
| 2009 | 2.5 | |
| 1980 | 1.3 | |
| 1981 | 1.5 | |
| 1982 | 1.7 | |
| 1983 | 1.8 | |
| 1984 | 2 | |
| 1985 | 2.2 | |
| 1986 | 2.4 | |
| 1987 | 2.6 | |
| 1988 | 2.8 | |
| 1989 | 2.8 | |
| 1990 | 4.5 | |
| 1991 | 4.8 | |
| 1992 | 5 | |
| 1993 | 5 | |
| 1994 | 5.4 | |
| 1995 | 6.2 | |
| 1996 | 6.7 | |
| 1997 | 7.1 | |
| 1998 | 7.4 | |
| 1999 | 8.2 | |
| 2000 | 8.5 | |
| 2001 | 8.5 | |
| 2002 | 9.8 | |
| 2003 | 10.6 | |
| 2004 | 11.2 | |
| 2005 | 11.8 | |
| 2006 | 12.2 | |
| 2007 | 12.6 | |
| 2008 | 12.8 | |
| 2009 | 12.9 | |
| 1980 | 0.6 | |
| 1981 | 0.5 | |
| 1982 | 0.6 | |
| 1983 | 0.6 | |
| 1984 | 1.1 | |
| 1985 | 1.2 | |
| 1986 | 1.7 | |
| 1987 | 1.9 | |
| 1988 | 2.1 | |
| 1989 | 2 | |
| 1990 | 2 | |
| 1991 | 1.9 | |
| 1992 | 3.2 | |
| 1993 | 3.2 | |
| 1994 | 3.1 | |
| 1995 | 3 | |
| 1996 | 2.8 | |
| 1997 | 2.6 | |
| 1998 | 2.5 | |
| 1999 | 2.3 | |
| 2000 | 2 | |
| 2001 | 1.8 | |
| 2002 | 1.6 | |
| 2003 | 1.5 | |
| 2004 | 1.5 | |
| 2005 | 1.5 | |
| 2006 | 1.5 | |
| 2007 | 1.5 | |
| 2008 | 1.4 | |
| 2009 | 1.4 | |
| 1980 | 1 | |
| 1981 | 0.9 | |
| 1982 | 0.9 | |
| 1983 | 0.9 | |
| 1984 | 1.1 | |
| 1985 | 1.1 | |
| 1986 | 1.2 | |
| 1987 | 1.6 | |
| 1988 | 1.5 | |
| 1989 | 1.4 | |
| 1990 | 1.4 | |
| 1991 | 1.5 | |
| 1992 | 3.2 | |
| 1993 | 3.7 | |
| 1994 | 3.5 | |
| 1995 | 3.4 | |
| 1996 | 3.5 | |
| 1997 | 3.7 | |
| 1998 | 4.1 | |
| 1999 | 4.4 | |
| 2000 | 4.6 | |
| 2001 | 4.6 | |
| 2002 | 5.1 | |
| 2003 | 5.1 | |
| 2004 | 5.1 | |
| 2005 | 4.9 | |
| 2006 | 4.5 | |
| 2007 | 4 | |
| 2008 | 6.5 | |
| 2009 | 6.5 | |
| 1980 | 0.6 | |
| 1981 | 0.9 | |
| 1982 | 0.8 | |
| 1983 | 0.7 | |
| 1984 | 0.7 | |
| 1985 | 0.6 | |
| 1986 | 0.5 | |
| 1987 | 0.5 | |
| 1988 | 0.9 | |
| 1989 | 0.8 | |
| 1990 | 0.8 | |
| 1991 | 0.8 | |
| 1992 | 0.8 | |
| 1993 | 0.8 | |
| 1994 | 0.8 | |
| 1995 | 0.8 | |
| 1996 | 0.8 | |
| 1997 | 0.8 | |
| 1998 | 0.9 | |
| 1999 | 0.9 | |
| 2000 | 0.9 | |
| 2001 | 1 | |
| 2002 | 1 | |
| 2003 | 0.9 | |
| 2004 | 1.1 | |
| 2005 | 1.1 | |
| 2006 | 1.1 | |
| 2007 | 1.1 | |
| 2008 | 1.1 | |
| 2009 | 1.1 | |
| 1980 | 0.6 | |
| 1981 | 0.6 | |
| 1982 | 0.6 | |
| 1983 | 0.5 | |
| 1984 | 0.6 | |
| 1985 | 0.6 | |
| 1986 | 0.6 | |
| 1987 | 0.6 | |
| 1988 | 0.6 | |
| 1989 | 0.6 | |
| 1990 | 0.6 | |
| 1991 | 0.6 | |
| 1992 | 0.5 | |
| 1993 | 0.6 | |
| 1994 | 0.6 | |
| 1995 | 0.7 | |
| 1996 | 0.7 | |
| 1997 | 0.7 | |
| 1998 | 0.7 | |
| 1999 | 0.8 | |
| 2000 | 0.9 | |
| 2001 | 1 | |
| 2002 | 1.1 | |
| 2003 | 0.9 | |
| 2004 | 0.8 | |
| 2005 | 0.8 | |
| 2006 | 0.8 | |
| 2007 | 0.9 | |
| 2008 | 0.8 | |
| 2009 | 0.8 | |
| 1980 | 19.5 | |
| 1981 | 19.9 | |
| 1982 | 24.9 | |
| 1983 | 25.9 | |
| 1984 | 28 | |
| 1985 | 54.5 | |
| 1986 | 55.5 | |
| 1987 | 58.1 | |
| 1988 | 58.5 | |
| 1989 | 59 | |
| 1990 | 60.1 | |
| 1991 | 62.6 | |
| 1992 | 63.3 | |
| 1993 | 64.4 | |
| 1994 | 64.9 | |
| 1995 | 66.3 | |
| 1996 | 72.7 | |
| 1997 | 74.9 | |
| 1998 | 76.1 | |
| 1999 | 76.8 | |
| 2000 | 76.8 | |
| 2001 | 77.7 | |
| 2002 | 77.3 | |
| 2003 | 77.2 | |
| 2004 | 79.7 | |
| 2005 | 80 | |
| 2006 | 87.3 | |
| 2007 | 99.4 | |
| 2008 | 172.3 | |
| 2009 | 172.3 | |
| 1998 | 1.2 | |
| 1999 | 1.2 | |
| 2000 | 1.2 | |
| 2001 | 1.2 | |
| 2002 | 7 | |
| 2003 | 7 | |
| 2004 | 7 | |
| 2005 | 7 | |
| 2006 | 7 | |
| 2007 | 7 | |
| 2008 | 7 | |
| 2009 | 7 | |
| 1980 | 0.5 | |
| 1981 | 0.4 | |
| 1982 | 0.3 | |
| 1983 | 0.3 | |
| 1984 | 0.5 | |
| 1985 | 0.4 | |
| 1986 | 0.4 | |
| 1987 | 0.4 | |
| 1988 | 0.5 | |
| 1989 | 0.6 | |
| 1990 | 0.6 | |
| 1991 | 0.6 | |
| 1992 | 0.7 | |
| 1993 | 0.7 | |
| 1994 | 0.8 | |
| 1995 | 0.9 | |
| 1996 | 0.9 | |
| 1997 | 0.9 | |
| 1998 | 0.9 | |
| 1999 | 0.9 | |
| 2000 | 1.1 | |
| 2001 | 1.3 | |
| 2002 | 1.3 | |
| 2003 | 1.3 | |
| 2004 | 1.3 | |
| 2005 | 1.3 | |
| 2006 | 1.2 | |
| 2007 | 1.1 | |
| 2008 | 0.8 | |
| 2009 | 0.9 | |
| 1980 | 0.4 | |
| 1981 | 0.4 | |
| 1982 | 0.4 | |
| 1983 | 0.4 | |
| 1984 | 0.6 | |
| 1985 | 0.6 | |
| 1986 | 0.6 | |
| 1987 | 0.7 | |
| 1988 | 0.8 | |
| 1989 | 0.8 | |
| 1990 | 0.8 | |
| 1991 | 0.8 | |
| 1992 | 0.6 | |
| 1993 | 0.6 | |
| 1994 | 0.8 | |
| 1995 | 0.8 | |
| 1996 | 0.8 | |
| 1997 | 0.8 | |
| 1998 | 0.8 | |
| 1999 | 0.9 | |
| 2000 | 0.9 | |
| 2001 | 0.8 | |
| 2002 | 0.8 | |
| 2003 | 0.8 | |
| 2004 | 0.8 | |
| 2005 | 0.8 | |
| 2006 | 0.8 | |
| 2007 | 0.9 | |
| 2008 | 1 | |
| 2009 | 0.9 | |
| 1998 | 25 | |
| 1999 | 25 | |
| 2000 | 25 | |
| 2001 | 39.6 | |
| 2002 | 39.6 | |
| 2003 | 39.6 | |
| 2004 | 39.6 | |
| 2005 | 39.8 | |
| 2006 | 39.8 | |
| 2007 | 39.8 | |
| 2008 | 39.8 | |
| 2009 | 39.8 | |
| 1980 | 4 | |
| 1981 | 4 | |
| 1982 | 3.8 | |
| 1983 | 4.9 | |
| 1984 | 5 | |
| 1985 | 5.9 | |
| 1986 | 6.5 | |
| 1987 | 6.6 | |
| 1988 | 8.2 | |
| 1989 | 8.4 | |
| 1990 | 8.6 | |
| 1991 | 8.8 | |
| 1992 | 9.7 | |
| 1993 | 9.6 | |
| 1994 | 9.7 | |
| 1995 | 10.8 | |
| 1996 | 11.7 | |
| 1997 | 12 | |
| 1998 | 11.7 | |
| 1999 | 10.9 | |
| 2000 | 11.4 | |
| 2001 | 11.6 | |
| 2002 | 10.4 | |
| 2003 | 10.1 | |
| 2004 | 9.7 | |
| 2005 | 9.7 | |
| 2006 | 8.5 | |
| 2007 | 8.2 | |
| 2008 | 7.5 | |
| 2009 | 7.1 | |
| 1980 | 1.1 | |
| 1981 | 1 | |
| 1982 | 1 | |
| 1983 | 1.6 | |
| 1984 | 1.5 | |
| 1985 | 1.4 | |
| 1986 | 1.4 | |
| 1987 | 1.3 | |
| 1988 | 1.2 | |
| 1989 | 1.2 | |
| 1990 | 1.5 | |
| 1991 | 1.5 | |
| 1992 | 1.2 | |
| 1993 | 1 | |
| 1994 | 1 | |
| 1995 | 1 | |
| 1996 | 1 | |
| 1997 | 0.9 | |
| 1998 | 1.2 | |
| 1999 | 1.2 | |
| 2000 | 1.2 | |
| 2001 | 1.2 | |
| 2002 | 0.5 | |
| 2003 | 0.5 | |
| 2004 | 0.5 | |
| 2005 | 0.5 | |
| 2006 | 0.5 | |
| 2007 | 0.5 | |
| 2008 | 0.5 | |
| 2009 | 0.5 | |
| 1998 | 55.8 | |
| 1999 | 59.2 | |
| 2000 | 59.6 | |
| 2001 | 64.6 | |
| 2002 | 73.9 | |
| 2003 | 76.2 | |
| 2004 | 75.8 | |
| 2005 | 76.6 | |
| 2006 | 73.5 | |
| 2007 | 74.1 | |
| 2008 | 74.3 | |
| 2009 | 74.2 | |
| 1998 | 0.5 | |
| 1999 | 0.5 | |
| 2000 | 0.5 | |
| 2001 | 0.5 | |
| 2002 | 0.5 | |
| 2003 | 0.5 | |
| 2004 | 0.5 | |
| 2005 | 0.5 | |
| 2006 | 0.6 | |
| 2007 | 0.6 | |
| 2008 | 0.6 | |
| 2009 | 0.6 | |
| 1980 | 8.4 | |
| 1981 | 7.9 | |
| 1982 | 7.5 | |
| 1983 | 6.9 | |
| 1984 | 6 | |
| 1985 | 5.6 | |
| 1986 | 5.3 | |
| 1987 | 5.2 | |
| 1988 | 4.3 | |
| 1989 | 3.8 | |
| 1990 | 4 | |
| 1991 | 4.2 | |
| 1992 | 4.6 | |
| 1993 | 4.5 | |
| 1994 | 4.3 | |
| 1995 | 4.5 | |
| 1996 | 5 | |
| 1997 | 5.2 | |
| 1998 | 5.1 | |
| 1999 | 5 | |
| 2000 | 4.7 | |
| 2001 | 4.5 | |
| 2002 | 4.5 | |
| 2003 | 4.3 | |
| 2004 | 4 | |
| 2005 | 3.9 | |
| 2006 | 3.6 | |
| 2007 | 3.4 | |
| 2008 | 3.1 | |
| 2009 | 3.1 | |
| 1998 | 0.6 | |
| 1999 | 0.6 | |
| 2000 | 0.6 | |
| 2001 | 0.6 | |
| 2002 | 0.6 | |
| 2003 | 0.6 | |
| 2004 | 0.6 | |
| 2005 | 0.6 | |
| 2006 | 0.6 | |
| 2007 | 0.6 | |
| 2008 | 0.6 | |
| 2009 | 0.6 | |
| 1980 | 58.3 | |
| 1981 | 57 | |
| 1982 | 56.1 | |
| 1983 | 55.3 | |
| 1984 | 58.9 | |
| 1985 | 59 | |
| 1986 | 92.9 | |
| 1987 | 92.9 | |
| 1988 | 92.9 | |
| 1989 | 92.9 | |
| 1990 | 92.9 | |
| 1991 | 92.9 | |
| 1992 | 92.9 | |
| 1993 | 92.9 | |
| 1994 | 94.3 | |
| 1995 | 93.7 | |
| 1996 | 92.6 | |
| 1997 | 92.6 | |
| 1998 | 93.7 | |
| 1999 | 93.1 | |
| 2000 | 99.5 | |
| 2001 | 99.1 | |
| 2002 | 130.7 | |
| 2003 | 133.3 | |
| 2004 | 132.7 | |
| 2005 | 137.5 | |
| 2006 | 138.4 | |
| 2007 | 138.2 | |
| 2008 | 137.6 | |
| 2009 | 137.6 | |
| 1980 | 30 | |
| 1981 | 32 | |
| 1982 | 59 | |
| 1983 | 65 | |
| 1984 | 65 | |
| 1985 | 65 | |
| 1986 | 72 | |
| 1987 | 100 | |
| 1988 | 100 | |
| 1989 | 100 | |
| 1990 | 100 | |
| 1991 | 100 | |
| 1992 | 100 | |
| 1993 | 100 | |
| 1994 | 100 | |
| 1995 | 100 | |
| 1996 | 112 | |
| 1997 | 112.5 | |
| 1998 | 112.5 | |
| 1999 | 112.5 | |
| 2000 | 112.5 | |
| 2001 | 115 | |
| 2002 | 115 | |
| 2003 | 115 | |
| 2004 | 115 | |
| 2005 | 115 | |
| 2006 | 115 | |
| 2007 | 115 | |
| 2008 | 115 | |
| 2009 | 115 | |
| 1980 | 67.9 | |
| 1981 | 67.7 | |
| 1982 | 67.2 | |
| 1983 | 67 | |
| 1984 | 92.7 | |
| 1985 | 92.5 | |
| 1986 | 94.5 | |
| 1987 | 94.5 | |
| 1988 | 94.5 | |
| 1989 | 97.1 | |
| 1990 | 97 | |
| 1991 | 96.5 | |
| 1992 | 96.5 | |
| 1993 | 96.5 | |
| 1994 | 96.5 | |
| 1995 | 96.5 | |
| 1996 | 96.5 | |
| 1997 | 96.5 | |
| 1998 | 96.5 | |
| 1999 | 96.5 | |
| 2000 | 96.5 | |
| 2001 | 96.5 | |
| 2002 | 96.5 | |
| 2003 | 99 | |
| 2004 | 101.5 | |
| 2005 | 101.5 | |
| 2006 | 101.5 | |
| 2007 | 101.5 | |
| 2008 | 101.5 | |
| 2009 | 101.5 | |
| 1980 | 2.5 | |
| 1981 | 2.9 | |
| 1982 | 3.4 | |
| 1983 | 3.5 | |
| 1984 | 3.9 | |
| 1985 | 4.1 | |
| 1986 | 4 | |
| 1987 | 4.1 | |
| 1988 | 4.1 | |
| 1989 | 4.3 | |
| 1990 | 4.4 | |
| 1991 | 4.4 | |
| 1992 | 4.7 | |
| 1993 | 5 | |
| 1994 | 5.1 | |
| 1995 | 5.2 | |
| 1996 | 5.3 | |
| 1997 | 5.4 | |
| 1998 | 5.4 | |
| 1999 | 5.7 | |
| 2000 | 5.8 | |
| 2001 | 5.9 | |
| 2002 | 5.7 | |
| 2003 | 5.6 | |
| 2004 | 5.6 | |
| 2005 | 5.6 | |
| 2006 | 5.6 | |
| 2007 | 5.6 | |
| 2008 | 5.6 | |
| 2009 | 5.6 | |
| 1980 | 3.6 | |
| 1981 | 3.5 | |
| 1982 | 3.4 | |
| 1983 | 3.3 | |
| 1984 | 4.5 | |
| 1985 | 4.5 | |
| 1986 | 4.5 | |
| 1987 | 4.5 | |
| 1988 | 4.5 | |
| 1989 | 4.5 | |
| 1990 | 3 | |
| 1991 | 3 | |
| 1992 | 3.1 | |
| 1993 | 3.1 | |
| 1994 | 3.5 | |
| 1995 | 3.7 | |
| 1996 | 3.7 | |
| 1997 | 12.5 | |
| 1998 | 13.5 | |
| 1999 | 13.1 | |
| 2000 | 16.9 | |
| 2001 | 16.8 | |
| 2002 | 27.6 | |
| 2003 | 27 | |
| 2004 | 26.9 | |
| 2005 | 27.9 | |
| 2006 | 27.4 | |
| 2007 | 27.3 | |
| 2008 | 26.8 | |
| 2009 | 26.8 | |
| 1980 | 168 | |
| 1981 | 167.9 | |
| 1982 | 165.5 | |
| 1983 | 168.8 | |
| 1984 | 171.7 | |
| 1985 | 171.5 | |
| 1986 | 169.7 | |
| 1987 | 169.6 | |
| 1988 | 255 | |
| 1989 | 260.1 | |
| 1990 | 260.3 | |
| 1991 | 260.9 | |
| 1992 | 261.2 | |
| 1993 | 261.4 | |
| 1994 | 261.4 | |
| 1995 | 261.5 | |
| 1996 | 261.4 | |
| 1997 | 261.5 | |
| 1998 | 261.5 | |
| 1999 | 262.8 | |
| 2000 | 262.8 | |
| 2001 | 262.7 | |
| 2002 | 262.8 | |
| 2003 | 262.7 | |
| 2004 | 264.3 | |
| 2005 | 264.2 | |
| 2006 | 264.3 | |
| 2007 | 264.2 | |
| 2008 | 264.1 | |
| 2009 | 264.6 | |
| 1980 | 1.5 | |
| 1981 | 1.9 | |
| 1982 | 1.8 | |
| 1983 | 1.5 | |
| 1984 | 1.4 | |
| 1985 | 1.5 | |
| 1986 | 1.6 | |
| 1987 | 1.7 | |
| 1988 | 1.8 | |
| 1989 | 2 | |
| 1990 | 1.9 | |
| 1991 | 3 | |
| 1992 | 3 | |
| 1993 | 3 | |
| 1994 | 2.7 | |
| 1995 | 2.6 | |
| 1996 | 2.5 | |
| 1997 | 2.3 | |
| 1998 | 2.3 | |
| 1999 | 2.3 | |
| 2000 | 2.3 | |
| 2001 | 2.3 | |
| 2002 | 2.3 | |
| 2003 | 2.4 | |
| 2004 | 3.2 | |
| 2005 | 3 | |
| 2006 | 3 | |
| 2007 | 2.5 | |
| 2008 | 2.5 | |
| 2009 | 2.5 | |
| 1980 | 30.4 | |
| 1981 | 32.2 | |
| 1982 | 32.4 | |
| 1983 | 32.3 | |
| 1984 | 32.5 | |
| 1985 | 33 | |
| 1986 | 97.2 | |
| 1987 | 98.1 | |
| 1988 | 98.1 | |
| 1989 | 98.1 | |
| 1990 | 98.1 | |
| 1991 | 98.1 | |
| 1992 | 98.1 | |
| 1993 | 98.1 | |
| 1994 | 98.1 | |
| 1995 | 98.1 | |
| 1996 | 97.8 | |
| 1997 | 97.8 | |
| 1998 | 97.8 | |
| 1999 | 97.8 | |
| 2000 | 97.8 | |
| 2001 | 97.8 | |
| 2002 | 97.8 | |
| 2003 | 97.8 | |
| 2004 | 97.8 | |
| 2005 | 97.8 | |
| 2006 | 97.8 | |
| 2007 | 97.8 | |
| 2008 | 97.8 | |
| 2009 | 97.8 | |
| 1985 | 0.5 | |
| 1986 | 0.5 | |
| 1987 | 1.1 | |
| 1988 | 2 | |
| 1989 | 2 | |
| 1990 | 2 | |
| 1991 | 2 | |
| 1992 | 2 | |
| 1993 | 2 | |
| 1994 | 2 | |
| 1995 | 2 | |
| 1996 | 2 | |
| 1997 | 1.8 | |
| 1998 | 1.9 | |
| 1999 | 1.9 | |
| 2000 | 2.4 | |
| 2001 | 2.4 | |
| 2002 | 2.9 | |
| 2003 | 2.9 | |
| 2004 | 3 | |
| 2005 | 2.9 | |
| 2006 | 2.8 | |
| 2007 | 2.7 | |
| 2008 | 2.7 | |
| 2009 | 2.7 | |
| 1980 | 8.2 | |
| 1981 | 8.1 | |
| 1982 | 9.4 | |
| 1983 | 9.2 | |
| 1984 | 9 | |
| 1985 | 8.8 | |
| 1986 | 8.8 | |
| 1987 | 8.6 | |
| 1988 | 9.2 | |
| 1989 | 9.2 | |
| 1990 | 9.2 | |
| 1991 | 9.2 | |
| 1992 | 9.2 | |
| 1993 | 9.2 | |
| 1994 | 10 | |
| 1995 | 10 | |
| 1996 | 10.8 | |
| 1997 | 11.2 | |
| 1998 | 11.3 | |
| 1999 | 11.3 | |
| 2000 | 11.3 | |
| 2001 | 11.3 | |
| 2002 | 11.3 | |
| 2003 | 11.8 | |
| 2004 | 11.8 | |
| 2005 | 12.3 | |
| 2006 | 12.3 | |
| 2007 | 12.2 | |
| 2008 | 12.2 | |
| 2009 | 12.2 | |
| 1980 | 1.4 | |
| 1981 | 1.1 | |
| 1982 | 1.5 | |
| 1983 | 1.7 | |
| 1984 | 2.1 | |
| 1985 | 2 | |
| 1986 | 1.4 | |
| 1987 | 2 | |
| 1988 | 2 | |
| 1989 | 2.1 | |
| 1990 | 1.6 | |
| 1991 | 1.4 | |
| 1992 | 1.3 | |
| 1993 | 1.9 | |
| 1994 | 3 | |
| 1995 | 3.1 | |
| 1996 | 3.7 | |
| 1997 | 3.9 | |
| 1998 | 4 | |
| 1999 | 5.1 | |
| 2000 | 6 | |
| 2001 | 6.5 | |
| 2002 | 8.9 | |
| 2003 | 8.8 | |
| 2004 | 9 | |
| 2005 | 9 | |
| 2006 | 9 | |
| 2007 | 13.5 | |
| 2008 | 13.5 | |
| 2009 | 13.5 | |
| 2000 | 0.9 | |
| 2001 | 0.9 | |
| 2002 | 0.9 | |
| 2003 | 0.9 | |
| 2004 | 0.9 | |
| 2005 | 0.9 | |
| 2006 | 0.9 | |
| 2007 | 0.9 | |
| 2008 | 0.9 | |
| 2009 | 0.9 | |
| 1980 | 0.7 | |
| 1981 | 0.7 | |
| 1982 | 0.8 | |
| 1983 | 0.7 | |
| 1984 | 0.8 | |
| 1985 | 0.8 | |
| 1986 | 0.7 | |
| 1987 | 0.7 | |
| 1988 | 0.8 | |
| 1989 | 0.7 | |
| 1990 | 0.8 | |
| 1991 | 0.7 | |
| 1992 | 0.7 | |
| 1993 | 0.7 | |
| 1994 | 1.4 | |
| 1995 | 1.3 | |
| 1996 | 1.6 | |
| 1997 | 1.6 | |
| 1998 | 1.7 | |
| 1999 | 1.7 | |
| 2000 | 1.7 | |
| 2001 | 1.6 | |
| 2002 | 1.5 | |
| 2003 | 1.8 | |
| 2004 | 1.8 | |
| 2005 | 1.9 | |
| 2006 | 1.9 | |
| 2007 | 1.9 | |
| 2008 | 1.9 | |
| 2009 | 1.9 | |
| 1980 | 2.9 | |
| 1981 | 3.5 | |
| 1982 | 3.7 | |
| 1983 | 4 | |
| 1984 | 4 | |
| 1985 | 3.8 | |
| 1986 | 4.5 | |
| 1987 | 4.7 | |
| 1988 | 4.3 | |
| 1989 | 4.3 | |
| 1990 | 3.5 | |
| 1991 | 3.5 | |
| 1992 | 3.4 | |
| 1993 | 3.4 | |
| 1994 | 3.9 | |
| 1995 | 3.8 | |
| 1996 | 3.8 | |
| 1997 | 3.7 | |
| 1998 | 3.8 | |
| 1999 | 3.8 | |
| 2000 | 3.6 | |
| 2001 | 3.7 | |
| 2002 | 3.5 | |
| 2003 | 3.5 | |
| 2004 | 3.6 | |
| 2005 | 3.7 | |
| 2006 | 3.7 | |
| 2007 | 4.1 | |
| 2008 | 4.2 | |
| 2009 | 4.4 | |
| 1991 | 0.3 | |
| 1992 | 0.3 | |
| 1993 | 0.3 | |
| 1994 | 0.3 | |
| 1995 | 0.6 | |
| 1996 | 0.6 | |
| 1997 | 0.6 | |
| 1998 | 0.6 | |
| 1999 | 0.6 | |
| 2000 | 0.8 | |
| 2001 | 1.1 | |
| 2002 | 1.1 | |
| 2003 | 1.3 | |
| 2004 | 1.8 | |
| 2005 | 1.8 | |
| 2006 | 1.8 | |
| 2007 | 1.7 | |
| 2008 | 1.7 | |
| 2009 | 1.7 | |
| 1980 | 0.5 | |
| 1981 | 0.5 | |
| 1982 | 0.5 | |
| 1983 | 0.5 | |
| 1984 | 0.6 | |
| 1985 | 0.7 | |
| 1986 | 0.6 | |
| 1987 | 1 | |
| 1988 | 0.9 | |
| 1989 | 1 | |
| 1990 | 0.9 | |
| 1991 | 0.9 | |
| 1992 | 0.8 | |
| 1993 | 0.7 | |
| 1994 | 1.4 | |
| 1995 | 1.5 | |
| 1996 | 2.8 | |
| 1997 | 2.7 | |
| 1998 | 2.6 | |
| 1999 | 2.6 | |
| 2000 | 2.4 | |
| 2001 | 2.4 | |
| 2002 | 2.4 | |
| 2003 | 2.3 | |
| 2004 | 2.2 | |
| 2005 | 2.1 | |
| 2006 | 2.2 | |
| 2007 | 3.2 | |
| 2008 | 3.7 | |
| 2009 | 3.7 | |
| 1980 | 20.3 | |
| 1981 | 22.6 | |
| 1982 | 22.2 | |
| 1983 | 21.8 | |
| 1984 | 21.4 | |
| 1985 | 21.3 | |
| 1986 | 22.8 | |
| 1987 | 22.8 | |
| 1988 | 22.8 | |
| 1989 | 22.8 | |
| 1990 | 22.8 | |
| 1991 | 22.8 | |
| 1992 | 22.8 | |
| 1993 | 22.8 | |
| 1994 | 22.8 | |
| 1995 | 29.5 | |
| 1996 | 29.5 | |
| 1997 | 29.5 | |
| 1998 | 29.5 | |
| 1999 | 29.5 | |
| 2000 | 36 | |
| 2001 | 36 | |
| 2002 | 36 | |
| 2003 | 39.1 | |
| 2004 | 39.1 | |
| 2005 | 41.5 | |
| 2006 | 41.5 | |
| 2007 | 43.7 | |
| 2008 | 44.3 | |
| 2009 | 44.3 | |
| 1980 | 16.7 | |
| 1981 | 16.5 | |
| 1982 | 16.8 | |
| 1983 | 16.6 | |
| 1984 | 16.7 | |
| 1985 | 16.6 | |
| 1986 | 16.1 | |
| 1987 | 16 | |
| 1988 | 16 | |
| 1989 | 16 | |
| 1990 | 17.1 | |
| 1991 | 20 | |
| 1992 | 21 | |
| 1993 | 21 | |
| 1994 | 21 | |
| 1995 | 20.8 | |
| 1996 | 20.8 | |
| 1997 | 20.8 | |
| 1998 | 22.5 | |
| 1999 | 29 | |
| 2000 | 29 | |
| 2001 | 31.5 | |
| 2002 | 34.3 | |
| 2003 | 35.3 | |
| 2004 | 35.9 | |
| 2005 | 36.2 | |
| 2006 | 36.2 | |
| 2007 | 36.2 | |
| 2008 | 37.2 | |
| 2009 | 37.2 | |
| 1981 | 0.2 | |
| 1982 | 0.4 | |
| 1983 | 0.3 | |
| 1984 | 0.3 | |
| 1985 | 0.3 | |
| 1986 | 0.3 | |
| 1987 | 0.3 | |
| 1988 | 0.3 | |
| 1989 | 0.3 | |
| 1990 | 0.3 | |
| 1991 | 0.3 | |
| 1992 | 0.3 | |
| 1993 | 0.3 | |
| 1994 | 0.3 | |
| 1995 | 0.3 | |
| 1996 | 0.3 | |
| 1997 | 0.3 | |
| 1998 | 0.3 | |
| 1999 | 0.3 | |
| 2000 | 0.6 | |
| 2001 | 0.7 | |
| 2002 | 0.7 | |
| 2003 | 6.3 | |
| 2004 | 6.4 | |
| 2005 | 6.4 | |
| 2006 | 6.6 | |
| 2007 | 6.7 | |
| 2008 | 6.7 | |
| 2009 | 6.7 | |
| 1980 | 2.2 | |
| 1981 | 2.5 | |
| 1982 | 2.5 | |
| 1983 | 2.5 | |
| 1984 | 1.8 | |
| 1985 | 1.8 | |
| 1986 | 1.8 | |
| 1987 | 1.7 | |
| 1988 | 1.8 | |
| 1989 | 1.8 | |
| 1990 | 1.7 | |
| 1991 | 0.4 | |
| 1992 | 0.5 | |
| 1993 | 0.4 | |
| 1994 | 0.3 | |
| 1995 | 0.4 | |
| 1996 | 0.3 | |
| 1997 | 0.3 | |
| 1998 | 0.3 | |
| 1999 | 0.3 | |
| 2000 | 0.4 | |
| 2001 | 0.5 | |
| 2002 | 0.5 | |
| 2003 | 0.6 | |
| 2004 | 0.7 | |
| 2005 | 0.6 | |
| 2006 | 0.6 | |
| 2007 | 0.6 | |
| 2008 | 0.6 | |
| 2009 | 0.6 | |
| 1980 | 2.1 | |
| 1981 | 2.6 | |
| 1982 | 2.9 | |
| 1983 | 2.5 | |
| 1984 | 2.6 | |
| 1985 | 2.5 | |
| 1986 | 2.9 | |
| 1987 | 2.9 | |
| 1988 | 3.2 | |
| 1989 | 3.1 | |
| 1990 | 3.2 | |
| 1991 | 3.2 | |
| 1992 | 3.2 | |
| 1993 | 3.3 | |
| 1994 | 3.8 | |
| 1995 | 3.8 | |
| 1996 | 3.8 | |
| 1997 | 4 | |
| 1998 | 4.8 | |
| 1999 | 4.7 | |
| 2000 | 4.9 | |
| 2001 | 5 | |
| 2002 | 4.6 | |
| 2003 | 3.7 | |
| 2004 | 3.9 | |
| 2005 | 3.7 | |
| 2006 | 3.5 | |
| 2007 | 3.4 | |
| 2008 | 4.2 | |
| 2009 | 4.2 | |
| 1980 | 1.3 | |
| 1981 | 1.5 | |
| 1982 | 1.4 | |
| 1983 | 1.5 | |
| 1984 | 1.5 | |
| 1985 | 1.4 | |
| 1986 | 1.5 | |
| 1987 | 1.6 | |
| 1988 | 1.2 | |
| 1989 | 1.2 | |
| 1990 | 1.1 | |
| 1991 | 1.2 | |
| 1992 | 1.1 | |
| 1993 | 1.3 | |
| 1994 | 1.2 | |
| 1995 | 1.1 | |
| 1996 | 1.1 | |
| 1997 | 1.1 | |
| 1998 | 1 | |
| 1999 | 1.3 | |
| 2000 | 1.2 | |
| 2001 | 1.2 | |
| 2002 | 1.1 | |
| 2003 | 1.1 | |
| 2004 | 1.1 | |
| 2005 | 1.1 | |
| 2006 | 1.2 | |
| 2007 | 1.1 | |
| 2008 | 1.1 | |
| 2009 | 1.1 | |
| 1980 | 13.3 | |
| 1981 | 13.3 | |
| 1982 | 13.2 | |
| 1983 | 14.9 | |
| 1984 | 16.3 | |
| 1985 | 17.1 | |
| 1986 | 17.1 | |
| 1987 | 17.4 | |
| 1988 | 17.3 | |
| 1989 | 16 | |
| 1990 | 16 | |
| 1991 | 15.5 | |
| 1992 | 15.2 | |
| 1993 | 16.4 | |
| 1994 | 16.2 | |
| 1995 | 16.3 | |
| 1996 | 16.4 | |
| 1997 | 17 | |
| 1998 | 17.4 | |
| 1999 | 15.1 | |
| 2000 | 15.2 | |
| 2001 | 15.4 | |
| 2002 | 15.5 | |
| 2003 | 15.5 | |
| 2004 | 15.5 | |
| 2005 | 15.6 | |
| 2006 | 15.6 | |
| 2007 | 15.5 | |
| 2008 | 14.8 | |
| 2009 | 14.8 | |
| 1980 | 2.8 | |
| 1981 | 3.5 | |
| 1982 | 3.5 | |
| 1983 | 3.6 | |
| 1984 | 3.8 | |
| 1985 | 3.8 | |
| 1986 | 4.6 | |
| 1987 | 4.4 | |
| 1988 | 4.5 | |
| 1989 | 4.3 | |
| 1990 | 5.6 | |
| 1991 | 6.1 | |
| 1992 | 5.9 | |
| 1993 | 5.9 | |
| 1994 | 5.8 | |
| 1995 | 5.5 | |
| 1996 | 5.5 | |
| 1997 | 5.6 | |
| 1998 | 5.4 | |
| 1999 | 5 | |
| 2000 | 5.3 | |
| 2001 | 5.5 | |
| 2002 | 5.6 | |
| 2003 | 5.7 | |
| 2004 | 5.6 | |
| 2005 | 5.9 | |
| 2006 | 5.7 | |
| 2007 | 5.5 | |
| 2008 | 5.8 | |
| 2009 | 5.8 | |
| 1980 | 11.6 | |
| 1981 | 11 | |
| 1982 | 10.5 | |
| 1983 | 10.1 | |
| 1984 | 9.6 | |
| 1985 | 9.2 | |
| 1986 | 9 | |
| 1987 | 9 | |
| 1988 | 9 | |
| 1989 | 5.1 | |
| 1990 | 5.4 | |
| 1991 | 5.9 | |
| 1992 | 5.6 | |
| 1993 | 5.2 | |
| 1994 | 5 | |
| 1995 | 5 | |
| 1996 | 4.7 | |
| 1997 | 4.9 | |
| 1998 | 5.1 | |
| 1999 | 5.2 | |
| 2000 | 5.1 | |
| 2001 | 5.1 | |
| 2002 | 4.7 | |
| 2003 | 4.7 | |
| 2004 | 4.3 | |
| 2005 | 4.2 | |
| 2006 | 4.4 | |
| 2007 | 4 | |
| 2008 | 3.7 | |
| 2009 | 4.4 | |
| 1980 | 1.8 | |
| 1981 | 2.3 | |
| 1982 | 2.6 | |
| 1983 | 2.6 | |
| 1984 | 2.9 | |
| 1985 | 3.5 | |
| 1986 | 3.5 | |
| 1987 | 3.3 | |
| 1988 | 3.4 | |
| 1989 | 3.7 | |
| 1990 | 3.6 | |
| 1991 | 3.7 | |
| 1992 | 5.1 | |
| 1993 | 5 | |
| 1994 | 5.2 | |
| 1995 | 5.2 | |
| 1996 | 5 | |
| 1997 | 5 | |
| 1998 | 4.7 | |
| 1999 | 5 | |
| 2000 | 4.5 | |
| 2001 | 4.5 | |
| 2002 | 4.5 | |
| 2003 | 4.8 | |
| 2004 | 5.2 | |
| 2005 | 5.3 | |
| 2006 | 5.4 | |
| 2007 | 5.5 | |
| 2008 | 5.5 | |
| 2009 | 5.5 | |
| 1984 | 0.1 | |
| 1985 | 0.1 | |
| 1986 | 0.1 | |
| 1987 | 0.1 | |
| 1988 | 0.1 | |
| 1989 | 0.2 | |
| 1990 | 0.3 | |
| 1991 | 0.2 | |
| 1992 | 0.2 | |
| 1993 | 0.2 | |
| 1994 | 0.2 | |
| 1995 | 0.3 | |
| 1996 | 0.2 | |
| 1997 | 0.3 | |
| 1998 | 0.4 | |
| 1999 | 0.4 | |
| 2000 | 0.5 | |
| 2001 | 0.6 | |
| 2002 | 0.7 | |
| 2003 | 0.5 | |
| 2004 | 0.5 | |
| 2005 | 0.5 | |
| 2006 | 0.5 | |
| 2007 | 0.5 | |
| 2008 | 0.5 | |
| 2009 | 0.5 | |
| 1988 | 0.1 | |
| 1989 | 0.1 | |
| 1990 | 0.2 | |
| 1991 | 0.2 | |
| 1992 | 0.4 | |
| 1993 | 0.6 | |
| 1994 | 0.6 | |
| 1995 | 0.8 | |
| 1996 | 0.9 | |
| 1997 | 1.2 | |
| 1998 | 1.9 | |
| 1999 | 1.8 | |
| 2000 | 2 | |
| 2001 | 2.2 | |
| 2002 | 2.8 | |
| 2003 | 3 | |
| 2004 | 3.1 | |
| 2005 | 3.1 | |
| 2006 | 3.3 | |
| 2007 | 3.4 | |
| 2008 | 4.7 | |
| 2009 | 4.5 |