Year	Total
1965	14229000
1966	14761000
1967	15783000
1968	17294000
1969	18211000
1970	19601000
1971	20709000
1972	23186000
1973	24657000
1974	28412000
1975	31951000
1976	35445000
1977	36574000
1978	41551000
1979	44656000
1980	49396000
1981	54021000
1982	55754000
1983	54398000
1984	58029000
1985	60510000
1986	60770000
1987	63731000
1988	63556000
1989	67845000
1990	71008000
1991	74021000
1992	74823000
1993	74549000
1994	81411000
1995	74750000
1996	76842000
1997	79890000
1998	84150000
1999	84087000
2000	88137000
2001	86608000
2002	82791000
2003	84958000
2004	88466000
2005	90836000
2006	89666000
2007	92027000
2008	91635000
2009	88535000
2010	88571000
2011	90305000
2012	92289000
2013	89824000
2014	85419000
2015	84390000
2016	82840000