Year	per person
1971	346.6
1972	350.5
1973	377.5
1974	387.9
1975	387.1
1976	395.8
1977	416.7
1978	421.4
1979	432.6
1980	462.3
1981	488.6
1982	469.5
1983	450.9
1984	473.1
1985	478.7
1986	502.9
1987	519.8
1988	532.8
1989	572.6
1990	584.7
1991	588.9
1992	485.4
1993	530.2
1994	536.7
1995	583.4
1996	698.6
1997	717.3
1998	696.2
1999	674.7
2000	651
2001	781.8
2002	684.7
2003	766.2
2004	815.3
2005	833.9
2006	897.9
2007	936
2008	920.1