Year	Total
1965	1289000
1966	1693000
1967	1578000
1968	1682000
1969	1775000
1970	2032000
1971	2288000
1972	2514000
1973	2739000
1974	3036000
1975	3378000
1976	3877000
1977	4400000
1978	4521000
1979	5420000
1980	5469000
1981	5889000
1982	6245000
1983	7011000
1984	7760000
1985	7966000
1986	8078000
1987	8158000
1988	8168000
1989	8553000
1990	9156000
1991	9069000
1992	9113000
1993	9079000
1994	8670000
1995	8433000
1996	8060000
1997	7986000
1998	8217000
1999	8110000
2000	8483000
2001	8782000
2002	9734000
2003	10125000
2004	10590000
2005	11034000
2006	11516000
2007	12901000
2008	14021000
2009	14868000
2010	14835000
2011	15831000
2012	16822000
2013	17562000
2014	17660000
2015	19463000
2016	18892000