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	800
1993	4060
1994	12500
1995	23500
1996	68910
1997	160457
1998	222700
1999	328671
2000	788559
2001	1251195
2002	1902388
2003	2742000
2004	4960000
2005	9593200
2006	18892480
2007	45024048
2008	74872310
2009	98223980
2010	111570201
2011	127318045
2012	131673724
2013	123735557
2014	136148124
2015	120324052
2016	120600235
2017	120016181