Year	Number
1976	239
1983	446
2003	839
2006	1828
2007	2089
2008	2354
2009	2921
2010	2983
2011	3712
2012	4242
2013	4636
2014	5110
2015	6335
2016	7366
2017	8458
2018	9424
2019	10487
2020	11133
2021	11762
2022	11910