Year	Number
2004-01-01	175215
2005-01-01	186972
2006-01-01	257078
2007-01-01	299158
2008-01-01	291142
2009-01-01	230295
2010-01-01	232205
2011-01-01	237137
2012-01-01	233982
2013-01-01	271312
2014-01-01	243353