Year	Total
1965	2285000
1966	2658600
1967	2713100
1968	2753500
1969	2838900
1970	3128300
1971	3425100
1972	3805900
1973	4124700
1974	4110600
1975	4334600
1976	4840700
1977	5510500
1978	5941400
1979	7205100
1980	8154800
1981	8688100
1982	9073200
1983	9714000
1984	9538300
1985	9510700
1986	9104800
1987	9335600
1988	10145000
1989	10491000
1990	12632000
1991	13601000
1992	14880000
1993	16389000
1994	18045000
1995	18870000
1996	20647000
1997	23872000
1998	20292000
1999	22342000
2000	22410000
2001	23305000
2002	26030000
2003	27568000
2004	27987000
2005	28002000
2006	28881000
2007	30809000
2008	29455000
2009	29227000
2010	29271000
2011	31545000
2012	32911000
2013	34945000
2014	34938000
2015	35543000
2016	36290000