Year	Number
2005	6736000
2006	6814000
2007	5569000
2008	5490000
2009	5575000
2010	5340000
2011	5073000
2012	4465000
2013	4440000
2014	4672000
2015	4909000
2016	5408000
2017	5410000
2018	5409000
2019	6049000
2020	1892000