Year Dollars 1992-01-01 693479 1997-01-01 4007627 2002-01-01 17264973 2003-01-01 16672493 2004-01-01 22498510 2005-01-01 24811593 2006-01-01 31208987 2007-01-01 44935513 2008-01-01 36739950 2009-01-01 32395966 2010-01-01 47219775 2011-01-01 51862673 2012-01-01 67346841 2013-01-01 72805353 2014-01-01 74240567 2015-01-01 58811307 2016-01-01 62945477