Year	Number
2009-01-01	35.5030
2010-01-01	42.4984
2011-01-01	44.6203
2012-01-01	43.4538
2013-01-01	53.1621
2014-01-01	51.9933
2015-01-01	61.9569
2016-01-01	65.5230