Year	Total
1965	57982000
1966	71669000
1967	82363000
1968	123860000
1969	147710000
1970	159540000
1971	130680000
1972	106820000
1973	104630000
1974	73586000
1975	71532000
1976	93492000
1977	99626000
1978	95648000
1979	101070000
1980	88287000
1981	59115000
1982	55393000
1983	54330000
1984	48244000
1985	48391000
1986	50195000
1987	47296000
1988	49713000
1989	54885000
1990	67242000
1991	67893000
1992	69699000
1993	66122000
1994	67500000
1995	67893000
1996	68586000
1997	70091000
1998	69593000
1999	66979000
2000	69499000
2001	67051000
2002	64554000
2003	69780000
2004	76526000
2005	81988000
2006	85253000
2007	85374000
2008	85580000
2009	77424000
2010	77847000
2011	22519000
2012	71219000
2013	46549000
2014	23391000
2015	20283000
2016	20043000