Year Dollars 1992-01-01 7290876 1997-01-01 36395167 2002-01-01 18345228 2003-01-01 26380421 2004-01-01 31816140 2005-01-01 40146492 2006-01-01 26649997 2007-01-01 34011413 2008-01-01 35869004 2009-01-01 33065880 2010-01-01 52496142 2011-01-01 61754971 2012-01-01 67992645 2013-01-01 60477536 2014-01-01 56050547 2015-01-01 69335066 2016-01-01 92374091