Year	Number
2002	32644
2003	28327
2004	30459
2005	26061
2006	26734
2007	22984
2008	22343
2009	22462
2010	15919
2011	6991
2012	10644
2013	11219
2014	15234
2015	9857
2016	20282
2017	11219
2018	8367
2019	9906
2020	13442
2021	16955