Year	Total
1960	0
1961	0
1962	343.9
1963	4041
1964	4385
1966	515.9
1967	8083
1968	5245
1969	1892
1970	4901
1972	945.8
1973	6535
1974	12730
1975	583300
1976	862900
1977	1027000
1978	1076000
1979	980800
1980	1079000
1981	1106000
1982	1347000
1983	2073000
1984	2385000
1985	2975000
1986	3387000
1987	3609000
1988	3706000
1989	3544000
1990	3673000
1991	3685000
1992	3737000
1993	3605000
1994	3493000
1995	3556000
1996	3726000
1997	4076000
1998	3969000
1999	4215000
2000	4141000
2001	3985000
2002	4072000
2003	4074000
2004	4068000
2005	4092000
2006	4011000
2007	4147000
2008	3918000
2009	4060000
2010	4122000
2011	4147000