Year	Number
2004	2127
2005	1495
2006	1712
2008	1829
2009	1766
2010	1949
2011	2084
2012	1985
2013	1995
2014	2421
2015	2728
2016	2356
2017	2685
2018	2897
2019	3913
2020	3469
2021	4233