Year Dollars 1992-01-01 11637273 1997-01-01 89806417 2002-01-01 13449169 2003-01-01 10760199 2004-01-01 17533544 2005-01-01 25547794 2006-01-01 29828641 2007-01-01 39589286 2008-01-01 47848787 2009-01-01 47506610 2010-01-01 42243417 2011-01-01 57079350 2012-01-01 47906114 2013-01-01 15846945 2014-01-01 53506502 2015-01-01 44383072 2016-01-01 25078666