Year Dollars 1992-01-01 7148268 1997-01-01 7470811 2002-01-01 5444850 2003-01-01 25063604 2004-01-01 23322041 2007-01-01 34125858 2008-01-01 36759761 2009-01-01 34547977 2010-01-01 45977471 2011-01-01 53091095 2012-01-01 73915063 2013-01-01 100798232 2014-01-01 75982898 2015-01-01 25926805 2016-01-01 17551199