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	0
1996	0
1997	0
1998	0
1999	0
2000	11940
2001	26895
2002	67000
2003	113214
2007	776000
2008	1008800
2009	1160000
2010	2000000
2011	2137000
2012	2210000
2013	4000000
2014	4756800
2015	5657000
2016	6279270