Year Dollars 1992-01-01 115255380 1997-01-01 264324788 2002-01-01 426564597 2003-01-01 442556216 2004-01-01 724001791 2005-01-01 1310293850 2006-01-01 1687106225 2007-01-01 1302235288 2008-01-01 1118463979 2009-01-01 953427423 2010-01-01 1235180496 2011-01-01 1378714986 2012-01-01 1630553481 2013-01-01 1804756580 2014-01-01 2224283910 2015-01-01 2192569501 2016-01-01 2122537427