Year Dollars 1992-01-01 72517657 1997-01-01 219793941 2002-01-01 302960362 2003-01-01 359067820 2004-01-01 469177176 2005-01-01 391253398 2006-01-01 546266654 2007-01-01 644980478 2008-01-01 771647721 2009-01-01 672191431 2010-01-01 779982895 2011-01-01 1099355399 2012-01-01 1235716542 2013-01-01 989939612 2014-01-01 1035729408 2015-01-01 1120926138 2016-01-01 1228627095