Year	Number
2004-01-01	132
2005-01-01	130
2006-01-01	127
2007-01-01	126
2008-01-01	125
2009-01-01	124
2010-01-01	121
2011-01-01	120
2012-01-01	121
2013-01-01	118
2014-01-01	117
2015-01-01	117
2016-01-01	117
2017-01-01	117