Year Dollars 1992-01-01 900733 1997-01-01 2460575 2002-01-01 5973397 2003-01-01 11388930 2004-01-01 34594304 2005-01-01 43711002 2006-01-01 55183582 2007-01-01 48420810 2008-01-01 46413961 2009-01-01 45571285 2010-01-01 31190096 2011-01-01 27816566 2012-01-01 23743371 2013-01-01 26167977 2014-01-01 19633957 2015-01-01 24613868 2016-01-01 19520670