Year	Number
1992	557200
1993	149700
1994	194500
1995	209900
1996	214000
1997	236800
1998	258900
1999	249600
2000	283836
2001	304051
2002	303865
2003	329271
2004	447883
2005	505409
2006	429657
2007	423585
2008	609847
2009	616514
2010	81450
2011	69445
2012	592996
2013	1009728
2014	1274911
2015	1363946
2016	1046012
2017	1069268
2018	26031
2019	40944
2020	35027
2021	11289