Year	Number
2004	32200
2005	34937
2006	37829
2007	41873
2008	40181
2009	34791
2010	38824
2011	41718
2012	43522
2013	44608
2014	46751
2015	49016
2016	53506
2017	57850
2018	63749
2019	61784
2020	59515
2021	76801