Year	Number
2004-01-01	133
2005-01-01	131
2006-01-01	130
2007-01-01	130
2008-01-01	124
2009-01-01	121
2010-01-01	122
2011-01-01	120
2012-01-01	120
2013-01-01	120
2014-01-01	119
2015-01-01	118
2016-01-01	116