Year	per person
1960	902.3
1961	1006
1962	1004
1963	1038
1964	1155
1965	1271
1966	1469
1967	1534
1968	1634
1969	1794
1970	1969
1971	2231
1972	2152
1973	2303
1974	2593
1975	2764
1976	3012
1977	3220
1978	3284
1979	3304
1980	3450
1981	3504
1982	3607
1983	3766
1984	3910
1985	3999
1986	4163
1987	4204
1988	4486
1989	4744
1990	4673
1991	4602
1992	4637
1993	4579
1994	4542
1995	4444
1996	4512
1997	4439
1998	4223
1999	4306
2000	4420
2001	4440
2002	4472
2003	4596
2004	4645
2005	4603
2006	4442
2007	4579
2008	4772