Year	Total
1965	3777000
1966	3878000
1967	4335000
1968	4936000
1969	4632000
1970	4581000
1971	4290000
1972	3554000
1973	3641000
1974	3921000
1975	4066000
1976	4061000
1977	4270000
1978	4497000
1979	4794000
1980	5012000
1981	5328000
1982	5869000
1983	6476000
1984	7028000
1985	7506000
1986	8084000
1987	8849000
1988	9530000
1989	10215000
1990	10694000
1991	11269000
1992	12334000
1993	13459000
1994	14440000
1995	15663000
1996	16485000
1997	17007000
1998	17594000
1999	18222000
2000	18836000
2001	18463000
2002	17978000
2003	15905000
2004	16038000
2005	15238000
2006	17580000
2007	19140000
2008	19417000
2009	20749000
2010	20548000
2011	20677000
2012	19991000
2013	21910000
2014	22649000
2015	24585000
2016	27472000