Year Number 2007-01-01 780.1740 2008-01-01 1663.0282 2009-01-01 1569.2118 2010-01-01 1637.8627 2011-01-01 1848.0792 2012-01-01 1941.3125 2013-01-01 1754.9204 2014-01-01 1811.2757 2015-01-01 1562.4824 2016-01-01 1924.1813 2017-01-01 1514.9159