Year	Number
2004	4234000
2005	5009000
2006	2336000
2007	4817000
2008	4705000
2009	6467000
2010	18625000
2011	15865399.4140625
2012	20084259.765625
2013	22535457.03125
2014	22322601.5625
2015	25054000
2016	27618000
2017	28748000
2018	27425000
2019	27196000