Year per person 1800 2.219 1820 2.219 1913 2.999 1929 3.159 1950 77.97 1970 106.5 1971 112.4 1972 118.7 1973 124.9 1974 133.9 1975 129.1 1976 149.1 1977 159.1 1978 163.8 1979 193.8 1980 174.4 1981 135.6 1982 136.9 1983 133.7 1984 130.8 1985 125.3 1986 118.5 1987 117.5 1988 115.5 1989 111 1990 110.9 1991 112.2 1992 107.8 1993 105.4 1994 104.4 1995 104.8 1996 105.8 1997 107.4 1998 104.2 1999 104.8 2000 105.3 2001 105.7 2002 107.3 2003 107.9 2004 106 2005 104.1 2006 106.5 2007 104.6 2008 100.6 2009 98.11