Year	Total
1965	3965000
1966	4760600
1967	5158400
1968	6070100
1969	6153000
1970	6749700
1971	6401600
1972	9061900
1973	11434000
1974	9740200
1975	9166800
1976	10621000
1977	11103000
1978	11736000
1979	12741000
1980	11715000
1981	8464200
1982	8676400
1983	8676400
1984	8351100
1985	8102900
1986	7993400
1987	7496100
1988	7254100
1989	7221000
1990	7320500
1991	7930400
1992	8849700
1993	8464200
1994	8663100
1995	8464200
1996	8015300
1997	7893900
1998	7595600
1999	8852000
2000	9492600
2001	9963900
2002	10312000
2003	10520000
2004	10349000
2005	10120000
2006	10840000
2007	9528300
2008	8591400
2009	8252700
2010	8451700
2011	8111800
2012	7817500
2013	6606500
2014	6181400
2015	6203500
2016	5925600