Year	per person
1971	69.28
1972	68.07
1973	80.72
1974	84.61
1975	90.16
1976	96.07
1977	104.6
1978	114.9
1979	122.5
1980	84.11
1981	84.84
1982	89.4
1983	96.67
1984	100.5
1985	102.3
1986	107.6
1987	114
1988	120.1
1989	123.6
1990	127.7
1991	136.4
1992	142.2
1993	156.3
1994	166.9
1995	180.5
1996	186.5
1997	198.7
1998	203.4
1999	227.2
2000	215
2001	214.2
2002	216.1
2003	204.4
2004	265.5
2005	229
2006	232.5
2007	234.1
2008	256.1