Year	Number
2004-01-01	167243
2005-01-01	176331
2006-01-01	191253
2007-01-01	225674
2008-01-01	279559
2009-01-01	309987
2010-01-01	242807
2011-01-01	215669
2012-01-01	291323
2013-01-01	271198
2014-01-01	260365
2015-01-01	365687
2016-01-01	259786