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	1100
1993	1162
1994	1990
1995	2279
1996	2826
1997	6767
1998	10756
1999	23757
2000	127404
2001	600000
2002	1187122
2003	1590785
2004	2546157
2005	4611970
2006	7340317
2007	11349412
2008	16303573
2009	19364559
2010	24968891
2011	28080771
2012	30731754
2013	31830003
2014	33632631
2015	37715944
2016	38982188
2017	42815109
2018	49501430
2019	54555497
2020	61408904
2021	65085720
2022	65737164