Year	Number
2004-01-01	400501
2005-01-01	424453
2006-01-01	453108
2007-01-01	477490
2008-01-01	496523
2009-01-01	495414
2010-01-01	484139
2011-01-01	445747
2012-01-01	430696
2013-01-01	403511
2014-01-01	387926
2015-01-01	384282
2016-01-01	391851