Year	Number
2004	63906
2005	73308
2006	88210
2007	117014
2008	119371
2009	134403
2010	172120
2011	176386
2012	176044
2013	183172
2014	200144
2015	250586
2016	264662
2017	242483
2018	297751
2019	322297
2020	382294
2021	435581