Year	per person
1971	89.32
1972	108.4
1973	119.1
1974	118.7
1975	124.4
1976	122.4
1977	135.7
1978	145.5
1979	152.7
1980	161
1981	169.3
1982	170.4
1983	154.5
1984	138.2
1985	165.4
1986	190.1
1987	200.7
1988	198.3
1989	191.6
1990	330
1991	340.4
1992	364.7
1993	390
1994	419
1995	443.7
1996	489
1997	360.2
1998	387.5
1999	399
2000	408
2001	450.7
2002	462.2
2003	468.7
2004	495.2
2005	518.5
2006	529.8
2007	546.7
2008	532.5