Year Dollars 1992-01-01 73575510 1997-01-01 97198048 2002-01-01 166939293 2003-01-01 222233067 2004-01-01 333623425 2005-01-01 324382017 2006-01-01 351220078 2007-01-01 562427268 2008-01-01 577359179 2009-01-01 448681710 2010-01-01 605422599 2011-01-01 747063746 2012-01-01 768745499 2013-01-01 738251376 2014-01-01 866510378 2015-01-01 777300518 2016-01-01 775181252