Year	Number
2007-01-01	243.3055
2008-01-01	251.3271
2009-01-01	248.1057
2010-01-01	247.9189
2011-01-01	256.6025
2012-01-01	265.9029
2013-01-01	285.9171
2014-01-01	277.6026
2015-01-01	278.7826
2016-01-01	284.2425
2017-01-01	288.1497