Year	Number
2004-01-01	37128
2005-01-01	41758
2006-01-01	196612
2007-01-01	193654
2008-01-01	198096
2009-01-01	268243
2010-01-01	275537
2011-01-01	420415
2012-01-01	302116
2013-01-01	305108
2014-01-01	170385
2015-01-01	319647
2016-01-01	188244