Year	Number
2006-01-01	195.7025
2007-01-01	209.4873
2008-01-01	206.7951
2009-01-01	188.5655
2010-01-01	193.9494
2011-01-01	197.0235
2012-01-01	202.2629
2013-01-01	210.3806
2014-01-01	214.8926
2015-01-01	227.7678
2016-01-01	242.8825
2017-01-01	259.5154