Year	Total
1965	117400000
1966	111730000
1967	104370000
1968	104450000
1969	101810000
1970	96024000
1971	85100000
1972	74542000
1973	80738000
1974	71080000
1975	71505000
1976	72766000
1977	73005000
1978	71121000
1979	76450000
1980	71065000
1981	70679000
1982	65919000
1983	66532000
1984	47276000
1985	62879000
1986	67908000
1987	69569000
1988	67532000
1989	65004000
1990	64945000
1991	65055000
1992	61168000
1993	53266000
1994	49734000
1995	47456000
1996	44366000
1997	39568000
1998	38581000
1999	34301000
2000	36728000
2001	38912000
2002	35710000
2003	38104000
2004	36620000
2005	37429000
2006	40932000
2007	38388000
2008	35615000
2009	29793000
2010	30928000
2011	31449000
2012	38958000
2013	36842000
2014	29721000
2015	23015000
2016	10973000