Year	Number
2004-01-01	11276
2005-01-01	15115
2006-01-01	25585
2007-01-01	35664
2008-01-01	75972
2009-01-01	78563
2010-01-01	97390
2011-01-01	109044
2012-01-01	125163
2013-01-01	146641
2014-01-01	169857
2015-01-01	198046
2016-01-01	215851