Year Number 2009-01-01 33.3188 2010-01-01 97.8669 2011-01-01 161.3003 2012-01-01 478.5570 2013-01-01 739.8798 2014-01-01 940.0400 2015-01-01 1015.3456 2016-01-01 1000.2775