Year	per person
1971	114.5
1972	118.8
1973	122
1974	125.9
1975	129.3
1976	131
1977	127.8
1978	129
1979	129.2
1980	129.5
1981	133.4
1982	129.4
1983	116.9
1984	112.4
1985	142.8
1986	144
1987	141
1988	142.6
1989	146.7
1990	150.1
1991	148.1
1992	146.9
1993	143
1994	145.6
1995	150.5
1996	162.6
1997	174.6
1998	181.9
1999	191.5
2000	197.1
2001	198.4
2002	208.6
2003	227.3
2004	238.7
2005	284.7
2006	282.8
2007	299.3
2008	297.9