Year	Total
1960	12550
1961	23300
1962	40670
1963	40070
1964	56320
1965	90540
1966	138100
1967	251200
1968	304300
1969	426100
1970	491100
1971	802800
1972	1255000
1973	1267000
1974	1264000
1975	1569000
1976	1357000
1977	1547000
1978	2621000
1979	3436000
1980	5267000
1981	9056000
1982	9365000
1983	12400000
1984	16440000
1985	19270000
1986	21850000
1987	22830000
1988	23690000
1989	26130000
1990	27010000
1991	28490000
1992	29100000
1993	31660000
1994	30950000
1995	32440000
1996	34170000
1997	34010000
1998	33360000
1999	33900000
2000	35700000
2001	36210000
2002	37550000
2003	37930000
2004	38540000
2005	38820000
2006	38710000
2007	37810000
2008	37790000
2009	35230000
2010	36850000
2011	38040000