Year	per person
1971	112.9
1972	141.7
1973	144.4
1974	143.9
1975	155.9
1976	162.2
1977	160.9
1978	161.1
1979	149.5
1980	142.7
1981	139.5
1982	143.2
1983	158.3
1984	159.1
1985	146.7
1986	158
1987	179.3
1988	174.3
1989	200.2
1990	223.6
1991	226
1992	225.4
1993	236
1994	253.7
1995	305.4
1996	312.7
1997	320
1998	331.3
1999	339.6
2000	341.1
2001	400.8
2002	414
2003	411.8
2004	398.6
2005	404.7
2006	397.8
2007	410.8
2008	368.4