Year Dollars 1992-01-01 1300145 1997-01-01 29245521 2002-01-01 10123806 2003-01-01 8326629 2004-01-01 8571955 2005-01-01 7774385 2006-01-01 8919359 2007-01-01 14575841 2008-01-01 11312962 2009-01-01 9261902 2010-01-01 17418452 2011-01-01 14713363 2012-01-01 13213504 2013-01-01 13156537 2014-01-01 11428446 2015-01-01 7514463 2016-01-01 23019922