Year Dollars 1992-01-01 554924 1997-01-01 2240049 2002-01-01 254170 2003-01-01 479024 2004-01-01 1665511 2005-01-01 2218930 2006-01-01 2188160 2007-01-01 722340 2008-01-01 4452779 2009-01-01 1093892 2010-01-01 1624850 2011-01-01 2568383 2012-01-01 3818938 2013-01-01 2203643 2014-01-01 3692336 2015-01-01 1815247 2016-01-01 3077788