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
1988	10827
1989	26295
1990	51728
1991	81906
1992	120000
1993	179000
1994	235630
1995	306000
1996	431010
1997	848600
1998	1094700
1999	1630800
2000	2747400
2001	2991600
2002	3313000
2003	3577000
2004	3990700
2005	4384600
2006	4788600
2007	5924100
2008	6414800
2009	6884800
2010	7384600
2011	7794300
2012	8067600
2013	8438100
2014	8103800
2015	8233100
2016	8460700
2017	8462800