Year	Number
2007-01-01	217.2742
2008-01-01	222.9670
2009-01-01	227.7215
2010-01-01	236.6153
2011-01-01	241.2841
2012-01-01	237.0173
2013-01-01	237.2191
2014-01-01	248.6873
2015-01-01	248.5010
2016-01-01	244.6317