Year Dollars 1992-01-01 62542640 1997-01-01 121259601 2002-01-01 26312414 2003-01-01 28369259 2004-01-01 35061990 2005-01-01 37020424 2006-01-01 30261571 2007-01-01 33736324 2008-01-01 28944146 2009-01-01 25193347 2010-01-01 28511158 2011-01-01 31818898 2012-01-01 30282310 2013-01-01 32802142 2014-01-01 24961036 2015-01-01 40419605 2016-01-01 23459234