Year	per person
1960	16.31
1961	17.26
1962	18.87
1963	20
1964	22.8
1965	24.14
1966	24.76
1967	28.65
1968	31.06
1969	36.34
1970	41.4
1971	41.01
1972	41.08
1973	36.13
1974	37.84
1975	46.69
1976	55.84
1977	63.07
1978	68.14
1979	72.4
1980	77.56
1981	79.31
1982	81.28
1983	83.11
1984	86.89
1985	98.28
1986	109.4
1987	123.1
1988	141.1
1989	150.2
1990	161.6
1991	189.6
1992	197.4
1993	212.1
1994	223.4
1995	236.9
1996	264.5
1997	293.7
1998	313.4
1999	348.5
2000	363.8
2001	354.3
2002	350.1
2003	370
2004	401
2005	444.2
2006	489.6
2007	512.7
2008	550.7