Year	Number
2004	249849
2005	274054
2006	290457
2007	324610
2008	308837
2009	279982
2010	295190
2011	319502
2012	330032
2013	339482
2014	361547
2015	388136
2016	388506
2017	428224
2018	445872
2019	460205
2020	549416
2021	551764