Year Dollars 1992-01-01 44781360 1997-01-01 36180170 2002-01-01 58062691 2003-01-01 51293634 2004-01-01 50984936 2005-01-01 78230972 2006-01-01 139218748 2007-01-01 151013427 2008-01-01 192897257 2009-01-01 128446295 2010-01-01 146827657 2011-01-01 104989259 2012-01-01 95404732 2013-01-01 113739992 2014-01-01 99847381 2015-01-01 116200209 2016-01-01 143656751