Year	Total
1965	5448800
1966	5323500
1967	5202800
1968	5087800
1969	4977600
1970	4872400
1971	4814000
1972	5235000
1973	4978000
1974	4573000
1975	3645000
1976	4237000
1977	4099000
1978	4397000
1979	4912000
1980	4192000
1981	5724000
1982	6588000
1983	7239000
1984	7621000
1985	7522000
1986	7755000
1987	7659000
1988	7519000
1989	7578000
1990	3268000
1991	3486000
1992	4915000
1993	5094000
1994	6858000
1995	7084000
1996	6906000
1997	7506400
1998	10511000
1999	11745000
2000	11805000
2001	12168000
2002	13166000
2003	15608000
2004	17786000
2005	19529000
2006	17697000
2007	17862000
2008	19016000
2009	20435000
2010	20942000
2011	20360000
2012	24410000
2013	22678000
2014	20983000
2015	22273000
2016	21993000