Year	Total
1960	0
1965	0
1970	0
1975	0
1976	0
1977	0
1978	0
1979	0
1980	0
1981	0
1982	0
1983	0
1984	0
1985	0
1986	0
1987	0
1988	0
1989	0
1990	0
1991	0
1992	0
1993	0
1994	0
1995	150
1996	2300
1997	30000
1998	60000
1999	133243
2000	194741
2001	301327
2002	503619
2003	711224
2004	840645
2005	1174308
2006	1703888
2007	2599714
2008	2755087
2009	2837000
2010	3978242
2011	4430344
2012	4698582
2013	4993119
2014	5400766
2015	5550730
2016	5531875
2017	5730625