Year Dollars 1992-01-01 48812170 1997-01-01 33939703 2002-01-01 38787179 2003-01-01 52453908 2004-01-01 65426852 2005-01-01 75916066 2006-01-01 100264471 2007-01-01 135030741 2008-01-01 308179312 2009-01-01 198950614 2010-01-01 429328681 2011-01-01 186874216 2012-01-01 232271813 2013-01-01 209484697 2014-01-01 360754167 2015-01-01 322309394 2016-01-01 354103098