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	1922
1991	2020
1992	2600
1993	2401
1995	4100
1996	4948
1997	6200
1998	8072
1999	15911
2000	31524
2001	60555
2002	121759
2003	122228
2004	186007
2005	227771
2006	252987
2007	373999
2008	358050
2009	358812
2010	428377
2011	298790
2012	300000
2013	287000
2014	314842
2015	311175
2016	360200
2017	353540
2018	388707
2019	425507
2020	466000
2021	397393
2022	403993