Year	Number
2004-01-01	46289
2005-01-01	54355
2006-01-01	59516
2007-01-01	83117
2008-01-01	138216
2009-01-01	137969
2010-01-01	132970
2011-01-01	66291
2012-01-01	69970
2013-01-01	97760
2014-01-01	88011
2015-01-01	75060
2016-01-01	82841