Year	Number
2007-01-01	58.9599214479458
2008-01-01	60.7013191777979
2009-01-01	66.3923664722717
2010-01-01	63.2283658449791
2011-01-01	59.0276103424812
2012-01-01	57.4237015971328
2013-01-01	55.4649237130750
2014-01-01	50.6730327218468