Year	Number
2006	2201
2007	6367
2008	11135
2009	13748
2010	17323
2011	28374
2012	29438
2013	28852
2014	36985
2015	42570
2016	46599
2017	61641
2018	70142
2019	69975
2020	70000
2021	65495
2022	60148
