Year Dollars 1992-01-01 18863795 1997-01-01 45062581 2002-01-01 35455771 2003-01-01 52351957 2004-01-01 88450499 2005-01-01 96755705 2006-01-01 118963268 2007-01-01 174350180 2008-01-01 248160112 2009-01-01 189426419 2010-01-01 243705239 2011-01-01 280870408 2012-01-01 259134755 2013-01-01 216510106 2014-01-01 242919150 2015-01-01 276042034 2016-01-01 265110567