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	3010
1991	10300
1992	16394
1993	31187
1994	54948
1995	171460
1996	471054
1997	1159044
1998	1642304
1999	2564006
2000	4610654
2001	8506448
2002	16793719
2003	39203391
2004	63084788
2005	116939914
2006	229130635
2007	347230170
2008	503420161
2009	703991350
2010	956959112
2011	1133612137
2012	1134455172
2013	1190248700
2014	1271478661
2015	1330871634
2016	1481310847
2017	1554228849
2018	1584779371
2019	1573644147
2020	1597697995
2021	1620342195
2022	1548602577