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	4000
2000	30000
2001	200000
2002	400000
2003	1185000
2004	2346000
2005	2950000
2006	4675000
2007	6234682
2008	7056158
2009	10021861
2010	11696000
2011	12917000
2012	12980000
2013	12291150
2014	14039749
2015	14312271
2016	13349860
2017	15650000