Year Dollars 1992-01-01 8828310 1997-01-01 72270634 2002-01-01 19866305 2003-01-01 27333367 2004-01-01 26554497 2005-01-01 31640600 2006-01-01 34086757 2007-01-01 56202958 2008-01-01 62481815 2009-01-01 38174916 2010-01-01 53209361 2011-01-01 68201668 2012-01-01 70385964 2013-01-01 58718983 2014-01-01 71688532 2015-01-01 71422934 2016-01-01 70997549