Year Number 2007-01-01 1188.8847 2008-01-01 1662.1598 2009-01-01 1841.6261 2010-01-01 1900.3948 2011-01-01 1869.1211 2012-01-01 1936.4570 2013-01-01 1972.0399 2014-01-01 2041.1789 2015-01-01 2088.5712 2016-01-01 2120.4683