Year	per person
1990	341.2
1991	464.4
1992	426.6
1993	434.8
1994	442
1995	468.3
1996	487.8
1997	514
1998	536.8
1999	561.7
2000	536.9
2001	538.8
2002	559.2
2003	587
2004	587.1
2005	578.6
2006	557.6
2007	584.1
2008	614.9