Year	Number
2006-01-01	152084
2007-01-01	120154
2008-01-01	129768
2009-01-01	131401
2010-01-01	131852
2011-01-01	131687
2012-01-01	136147
2013-01-01	138301
2014-01-01	140841
2015-01-01	143666
2016-01-01	149632
2017-01-01	155483