Year	Number
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	0
2001	0
2002	0
2003	2000
2004	8378
2005	15523
2006	36877
2007	62104
2008	91741
2009	122596
2010	165278
2011	216438
2012	283511
2013	347500
2014	383000
2015	424786
2016	454389
2017	468914
2018	498903
2019	575218
2020	781579
2021	853449
2022	838768