Year Number 2008-01-01 41.8868 2009-01-01 58.1140 2010-01-01 69.2438 2011-01-01 80.3243 2012-01-01 91.4285 2013-01-01 114.1283 2014-01-01 124.2283 2015-01-01 125.5733 2016-01-01 105.9542