Year	Number
2004-01-01	32
2005-01-01	37
2006-01-01	63
2007-01-01	84
2008-01-01	107
2009-01-01	130
2010-01-01	145
2011-01-01	162
2012-01-01	168
2013-01-01	177
2014-01-01	187
2015-01-01	205
2016-01-01	209