Year	per person
1971	218.7
1972	242.1
1973	262.7
1974	250.7
1975	284.2
1976	309.7
1977	335.1
1978	395.6
1979	396.5
1980	420.1
1981	431.2
1982	440.1
1983	488.3
1984	487.1
1985	531.8
1986	569.2
1987	618.8
1988	649.8
1989	658.1
1990	785.1
1991	845.4
1992	892.7
1993	938.8
1994	1011
1995	1082
1996	1134
1997	1246
1998	1365
1999	1347
2000	1419
2001	1453
2002	1513
2003	1522
2004	1499
2005	1525
2006	1506
2007	1498
2008	1465