Year	Number
2000	11673
2001	14161
2002	15378
2003	14355
2004	21126
2005	23572
2006	25154
2007	25016
2008	19009
2009	14258
2010	13411
2011	14368
2012	15890
2013	17859
2014	20158
2015	21472
2016	23574
2017	22924
2018	24411
2019	28685
2020	6470
2021	6773