Year	Number
2006-01-01	259011
2007-01-01	275250
2008-01-01	260293
2009-01-01	268470
2010-01-01	235316
2011-01-01	264577
2012-01-01	247459
2013-01-01	245775
2014-01-01	268994
2015-01-01	332230
2016-01-01	356524