Year	Total
1965	45000
1966	65000
1967	116000
1968	128000
1969	136000
1970	145000
1971	114250
1972	89802
1973	96147
1974	144170
1975	137810
1976	159850
1977	153740
1978	198000
1979	416330
1980	450170
1981	500740
1982	652750
1983	626740
1984	789190
1985	1585100
1986	1555200
1987	2245400
1988	2313500
1989	2817800
1990	3899500
1991	4567000
1992	4887900
1993	5444500
1994	6295500
1995	7181700
1996	8738000
1997	9011500
1998	7230000
1999	7686700
2000	7884400
2001	8777100
2002	9367300
2003	9567700
2004	10720000
2005	11587000
2006	12366000
2007	13986000
2008	15075000
2009	15122000
2010	15516000
2011	15811000
2012	16538000
2013	16284000
2014	17929000
2015	17573000
2016	17740000