Year	Number
2004-01-01	182730
2005-01-01	199551
2006-01-01	293513
2007-01-01	312621
2008-01-01	354519
2009-01-01	576572
2010-01-01	616857
2011-01-01	703814
2012-01-01	827834
2013-01-01	689554
2014-01-01	686418
2015-01-01	716852
2016-01-01	668540