Year Dollars 1992-01-01 1148342729 1997-01-01 2161182211 2002-01-01 1995015080 2003-01-01 2080783250 2004-01-01 2894666979 2005-01-01 3004685768 2006-01-01 3163834479 2007-01-01 4173021075 2008-01-01 5154013574 2009-01-01 4940489935 2010-01-01 5684823661 2011-01-01 6277347999 2012-01-01 6133097709 2013-01-01 5463406861 2014-01-01 5397529766 2016-01-01 4473452779