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	2300
1990	12000
1991	25000
1992	46590
1993	112000
1994	241163
1995	405395
1996	667020
1997	2009073
1998	2670862
1999	3848869
2000	6487950
2001	6741791
2002	6566740
2003	7842233
2004	13512383
2005	22156426
2006	31510390
2007	40401771
2008	46508774
2009	52482780
2010	57082298
2011	60722729
2012	64327647
2013	67361515
2014	61234216
2015	61842011
2016	63719805
2017	61897379
2018	58598041
2019	56352947
2020	54763900
2021	59065827
2022	60236460