Year	Number
2004-01-01	122
2005-01-01	125
2006-01-01	128
2007-01-01	140
2008-01-01	140
2009-01-01	146
2010-01-01	189
2011-01-01	199
2012-01-01	238
2013-01-01	230
2014-01-01	296
2015-01-01	403