Year	Number
2008-01-01	577.2209
2009-01-01	553.4675
2010-01-01	522.1384
2011-01-01	611.6128
2012-01-01	581.9627
2013-01-01	544.3928
2014-01-01	517.6694
2015-01-01	512.1157
2016-01-01	505.2562