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	0
1990	0
1991	0
1992	0
1993	0
1994	0
1995	0
1996	0
1997	0
1998	4700
1999	14000
2000	33000
2001	55000
2002	68000
2003	85000
2004	145000
2005	200000
2006	250000
2007	380000
2008	531643
2009	664432
2010	725802
2011	766540
2012	805000
2013	893000
2014	916800
2015	941000
2016	995000
2017	1027470
2018	1042689
2019	1074298
2020	1249351
2021	1431351
2022	1468083