Year	Number
1999	1369751
2000	1114141
2001	1273502
2002	1135764
2003	1137433
2005	955218
2006	891182
2007	739282
2008	582300
2009	621662
2011	447448
2012	533570
2014	720563
2015	654703
2016	791181
2017	362247
2018	427057
2019	320592
2020	565771
2021	547863