Year	Number
1994	9100
1995	13000
1996	29000
1997	55400
1998	21200
1999	91500
2000	136622
2001	146273
2002	137569
2003	158888
2004	179543
2005	195702
2006	213315
2007	238913
2008	243691
2009	231263
2010	768533
2011	829778.923870707
2012	814339.730278696
2013	865848
2014	151632
2016	26634
2017	204090
2018	303137
2019	307741
2020	124714
2021	193259