Year	Number
2004-01-01	151.4511
2005-01-01	175.0981
2006-01-01	204.4353
2007-01-01	237.4347
2008-01-01	264.6302
2009-01-01	277.6743
2010-01-01	286.7122
2011-01-01	307.8876
2012-01-01	328.9613
2013-01-01	293.2744
2014-01-01	304.6853
2015-01-01	351.8018
2016-01-01	370.9449
2017-01-01	375.4230