Year	Number
2004-01-01	1707503.0
2005-01-01	1718894.0
2006-01-01	1643270.5
2007-01-01	1827574.0
2008-01-01	1973763.0
2009-01-01	2034761.0
2010-01-01	1934665.0
2011-01-01	2050606.0
2012-01-01	1860489.0
2013-01-01	2109236.0
2014-01-01	2261562.0
2015-01-01	2819186.0
2016-01-01	3063427.0
2017-01-01	3560592.0
