Year Dollars 1992-01-01 9654680 1997-01-01 20563629 2003-01-01 3527870 2004-01-01 5864306 2005-01-01 5717301 2007-01-01 3444404 2008-01-01 3231069 2009-01-01 1258194 2010-01-01 2602106 2011-01-01 3288692 2012-01-01 3660505 2013-01-01 4183363 2014-01-01 3939431 2015-01-01 4226174 2016-01-01 3587362