Year Dollars 1992-01-01 440984835 1997-01-01 863614280 2002-01-01 1916523635 2003-01-01 1919540833 2004-01-01 2270270865 2005-01-01 2242629495 2006-01-01 2565193764 2007-01-01 2886134334 2008-01-01 3350644768 2009-01-01 2574706113 2010-01-01 3323511249 2011-01-01 3838641644 2012-01-01 4478627708 2013-01-01 4688027613 2014-01-01 5654281036 2015-01-01 6142712886 2016-01-01 5886694753