Year	Number
1960	0
1965	0
1970	0
1975	0
1976	0
1977	0
1978	0
1979	0
1980	23482
1981	28278
1982	33880
1983	42226
1984	52010
1985	90036
1986	168893
1987	276071
1988	476560
1989	783789
1990	1365679
1991	2241042
1992	3268590
1993	5073961
1994	7956698
1995	13079851
1996	22885539
1997	40150001
1998	70124354
1999	120869761
2000	190664049
2001	232211280
2002	249397879
2003	270465668
2004	294142927
2005	326140657
2006	355014007
2007	390455994
2008	409155569
2009	408084901
2010	396450965
2011	407701660
2012	413082961
2013	416944686
2014	411655041
2015	409998147
2016	414271063
2017	419786782
2018	419586389
2019	418913887
2020	417236631
2021	422685687
2022	424057862