Year Dollars 1992-01-01 91335 1997-01-01 819644 2002-01-01 604537 2003-01-01 531835 2004-01-01 721587 2005-01-01 3352441 2006-01-01 2809472 2007-01-01 5554942 2008-01-01 2662398 2009-01-01 3170727 2010-01-01 3140886 2011-01-01 6924598 2012-01-01 6477098 2013-01-01 7912877 2014-01-01 7196388 2015-01-01 5115459 2016-01-01 2693377