Year	Total
1965	428780
1966	375180
1967	321590
1968	268720
1969	214390
1970	214390
1971	214390
1972	4192100
1973	11202000
1974	9486800
1975	8629200
1976	10104000
1977	9839800
1978	10890000
1979	11533000
1980	11027000
1981	11372000
1982	11372000
1983	12819000
1984	13944000
1985	15223000
1986	15866000
1987	9388900
1988	16501000
1989	15240000
1990	15523000
1991	16305000
1992	17456000
1993	18726000
1994	20602000
1995	20999000
1996	20927000
1997	21084000
1998	20441000
1999	20334000
2000	21592000
2001	21909000
2002	21073000
2003	22467000
2004	28333000
2005	28577000
2006	28774000
2007	27456000
2008	27189000
2009	26115000
2010	26116000
2011	26809000
2012	27098000
2013	28243000
2014	29830000
2015	29109000
2016	29306000