Year	per person
1976	28.56
1977	30.22
1978	29.29
1979	31.67
1980	29.86
1981	31.88
1982	31
1983	33.84
1984	43.11
1985	49.62
1986	49.44
1987	48.2
1988	46.14
1989	41.76
1990	24.5
1991	29.12
1992	31.42
1993	35.17
1994	23.62
1995	22.75
1996	21.37
1997	21.18
1998	20.77
1999	21.15
2000	23.69
2001	22.75
2002	22.18
2003	23.16
2004	25.45
2005	25.71
2006	42
2007	31.81
2008	30.71