Year Dollars 1992-01-01 7658968 1997-01-01 29442105 2002-01-01 10979718 2003-01-01 15947304 2004-01-01 18429761 2005-01-01 20305504 2006-01-01 33065060 2007-01-01 39254882 2008-01-01 47947403 2009-01-01 42848656 2010-01-01 74647701 2011-01-01 132133291 2012-01-01 137195442 2013-01-01 141253503 2014-01-01 93970752 2015-01-01 112803187 2016-01-01 87174789