Year	Total
1965	3840000
1966	4397900
1967	4433200
1968	4933600
1969	4735800
1970	5341700
1971	5531000
1972	6297000
1973	6024000
1974	6675000
1975	6716000
1976	7087000
1977	7096000
1978	7224000
1979	7673000
1980	7286500
1981	7468400
1982	7655200
1983	7924900
1984	7875400
1985	8175500
1986	8085100
1987	8505400
1988	8958000
1989	9189200
1990	9332200
1991	9574900
1992	10546000
1993	11236000
1994	11591000
1995	12224000
1996	12624000
1997	12830000
1998	12521000
1999	11087000
2000	10864000
2001	10173000
2002	10011000
2003	10430000
2004	10436000
2005	10853000
2006	10855000
2007	10738000
2008	11685000
2009	10671000
2010	11931000
2011	12767000
2012	13860000
2013	13905000
2014	14766000
2015	15551000
2016	15910000