Year Dollars 2002-01-01 23240 2003-01-01 18827 2005-01-01 2831108 2008-01-01 121649 2009-01-01 71920 2010-01-01 102476 2011-01-01 336144 2012-01-01 492941 2013-01-01 174298 2014-01-01 268554 2015-01-01 541697 2016-01-01 127079