Year	Number
2004	159900
2005	158200
2006	151100
2007	166000
2008	157900
2009	129300
2010	141600
2011	156800
2012	172400
2013	178800
2014	179900
2015	188900
2016	190400
2017	204700
2018	200900
2019	223700
2020	211300
2021	273400