Year	Number
2004-01-01	122
2005-01-01	105
2006-01-01	126
2007-01-01	129
2008-01-01	148
2009-01-01	175
2010-01-01	155
2011-01-01	186
2012-01-01	203
2013-01-01	200
2014-01-01	143
2015-01-01	141