Year	Number
2005-01-01	125
2006-01-01	132
2007-01-01	156
2008-01-01	165
2009-01-01	176
2010-01-01	200
2011-01-01	253
2012-01-01	247
2013-01-01	252
2014-01-01	271
2015-01-01	286