Year	Total
1965	59481000
1966	60278000
1967	61369000
1968	64322000
1969	67577000
1970	70180000
1971	71837000
1972	75147000
1973	75456000
1974	77583000
1975	83701000
1976	87516000
1977	90620000
1978	94839000
1979	95983000
1980	101640000
1981	90630000
1982	93815000
1983	93588000
1984	97586000
1985	99855000
1986	102410000
1987	106100000
1988	103180000
1989	98591000
1990	78441000
1991	77692000
1992	75111000
1993	74246000
1994	69148000
1995	70324000
1996	71982000
1997	70246000
1998	63295000
1999	60725000
2000	56244000
2001	55581000
2002	54529000
2003	56139000
2004	54489000
2005	55118000
2006	57402000
2007	55948000
2008	55218000
2009	51838000
2010	55075000
2011	54963000
2012	51229000
2013	53381000
2014	49445000
2015	48671000
2016	48807000