Year	Number
1960	0
1965	0
1970	0
1975	0
1976	0
1977	0
1978	0
1979	0
1980	0
1984	91600
1985	352213
1986	741825
1987	1329219
1988	2272074
1989	3854867
1990	5867933
1991	8334419
1992	12061300
1993	17345843
1994	26005327
1995	36381765
1996	47548751
1997	59517569
1998	74567893
1999	92970841
2000	118218031
2001	139162333
2002	153702000
2003	173968000
2004	199888000
2005	220769320
2006	248409200
2007	269646400
2008	283471500
2009	298179900
2010	311031600
2011	324244000
2012	332649000
2013	339152300
2014	351445491
2015	361904000
2016	369053891
2017	371870997
2018	381453000
2019	390196950
2020	384950144
2021	395343000
2022	407764123