Year Dollars 2003-01-01 212145 2004-01-01 76673 2006-01-01 84670 2008-01-01 399535 2009-01-01 684753 2010-01-01 1076786 2011-01-01 3172130 2012-01-01 1340657 2013-01-01 3154171 2014-01-01 2505536 2015-01-01 611966 2016-01-01 1069344