Year	Number
2004-01-01	203
2005-01-01	215
2006-01-01	237
2007-01-01	247
2008-01-01	262
2009-01-01	265
2010-01-01	263
2011-01-01	256
2012-01-01	252
2013-01-01	250
2014-01-01	256
2015-01-01	250
2016-01-01	250