Year	Number
2004	1423
2005	1385
2006	1752
2008	1330
2009	1546
2010	1986
2011	1872
2012	1997
2013	1670
2014	2249
2015	2025
2016	2757
2017	2405
2018	2448
2019	2940
2020	2723
2021	2966