Year	per person
1971	559.7
1972	633.5
1973	682.5
1974	661.8
1975	696.6
1976	733.3
1977	759
1978	796.8
1979	796.9
1980	798.8
1981	762.5
1982	833.4
1983	884.1
1984	829.6
1985	857.8
1986	870.3
1987	953.5
1988	1133
1989	1191
1990	1179
1991	1180
1992	1395
1993	1388
1994	1485
1995	1530
1996	1594
1997	1713
1998	1800
1999	1775
2000	1980
2001	1989
2002	2111
2003	2161
2004	2181
2005	2186
2006	2254
2007	2342
2008	2342