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	1750
1985	2029
1986	16534
1987	35415
1988	68446
1989	132474
1990	308269
1991	595550
1992	1180263
1993	2336516
1994	5121454
1995	10155808
1996	17986518
1997	32904865
1998	53931577
1999	97982473
2000	177125311
2001	274011539
2002	378051523
2003	493007638
2004	654822485
2005	857836916
2006	1072281844
2007	1326463250
2008	1583976401
2009	1790224507
2010	2029185667
2011	2294280958
2012	2514845003
2013	2742707534
2014	2831945755
2015	2856203498
2016	2990788091
2017	3146363730
2018	3212394710
2019	3377725099
2020	3360694313
2021	3461309082
2022	3474218216