Year Dollars 1992-01-01 14029028 1997-01-01 38410997 2002-01-01 70808436 2003-01-01 63523346 2004-01-01 51867678 2005-01-01 86848951 2006-01-01 94197049 2007-01-01 102637176 2008-01-01 120400476 2009-01-01 71843024 2010-01-01 187915859 2011-01-01 267201297 2012-01-01 332556338 2013-01-01 317724650 2014-01-01 271969769 2015-01-01 245892367 2016-01-01 184102576