Year Dollars 1992-01-01 140512944 1997-01-01 169989067 2002-01-01 339695343 2003-01-01 354837074 2004-01-01 628691532 2005-01-01 762067813 2006-01-01 1063478896 2007-01-01 1422809155 2008-01-01 1576473724 2009-01-01 939594917 2010-01-01 1152608877 2011-01-01 1097576625 2012-01-01 827072543 2013-01-01 1012512765 2014-01-01 1200648893 2015-01-01 1265808973 2016-01-01 1229351541