Year	Number
2004-01-01	1174758
2005-01-01	1404530
2006-01-01	1499610
2007-01-01	1602820
2008-01-01	1726720
2009-01-01	1858848
2010-01-01	1949562
2011-01-01	1969634
2012-01-01	1954959
2013-01-01	1980183
2014-01-01	2001604
2015-01-01	1687027
2016-01-01	1754159