Year	Number
2004-01-01	62
2005-01-01	62
2006-01-01	62
2007-01-01	62
2008-01-01	62
2009-01-01	62
2010-01-01	62
2011-01-01	62
2012-01-01	62
2013-01-01	66
2014-01-01	72
2015-01-01	77
2016-01-01	77