Year	per person
1971	248.5
1972	284.3
1973	310.8
1974	276.3
1975	222.8
1976	233.9
1977	262.4
1978	286.2
1979	289.3
1980	299.6
1981	310.8
1982	330
1983	360.9
1984	365.7
1985	392.5
1986	415.5
1987	473.2
1988	545.1
1989	606.7
1990	659.1
1991	680.3
1992	830.1
1993	905.9
1994	929
1995	1035
1996	1116
1997	1122
1998	1207
1999	1263
2000	1391
2001	1366
2002	1508
2003	1679
2004	1696
2005	1837
2006	1913
2007	2040
2008	2124