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	618
1987	1712
1988	2886
1989	4251
1990	5147
1991	7354
1992	9683
1993	11360
1994	17616
1995	27600
1996	40080
1997	58543
1998	92063
1999	133468
2000	205727
2001	299587
2002	388990
2003	443109
2004	649764
2005	767103
2006	907433
2007	1115979
2008	1440782
2009	1401974
2010	1567000
2011	1693650
2012	2123903
2013	2210190
2014	2328994
2015	2519055
2016	2994865
2017	2364477
2018	2092714
2019	1918635
2020	1770966
2021	1923443
2022	2141263