Year	Total
1960	0
1965	0
1970	0
1975	0
1976	0
1977	0
1978	0
1979	0
1980	0
1981	13275
1982	19804
1983	27198
1984	40392
1985	61800
1986	95131
1987	150773
1988	242888
1989	489558
1990	868078
1991	1378108
1992	1712545
1993	2131367
1994	4331369
1995	11712137
1996	26906511
1997	38253893
1998	47307592
1999	56845594
2000	66784374
2001	74819158
2002	81118324
2003	86655000
2004	91474000
2005	96484000
2006	99826000
2007	107339000
2008	110394996
2009	116295378
2010	123287125
2011	132761125
2012	141129280
2013	147887593
2014	157856591
2015	160559734
2016	166852753
2017	170128499