Year	Total
1970	0
1971	0
1972	0
1973	0
1974	0
1975	0
1976	0
1977	2389400
1978	12781000
1979	18603000
1980	22579000
1981	22456000
1982	21564000
1983	21251000
1984	23366000
1985	23567000
1986	23481000
1987	25336000
1988	25497000
1989	25864000
1990	22932000
1991	22524000
1992	23250000
1993	22323000
1994	24157000
1995	25032000
1996	33658000
1997	38650000
1998	39775000
1999	43624000
2000	44816000
2001	48633000
2002	59035000
2003	65664000
2004	71261000
2005	77258000
2006	79801000
2007	81279000
2008	90099000
2009	93945000
2010	96525000
2011	91140000
2012	103250000
2013	97871000
2014	97938000
2015	105440000
2016	104980000