Year Dollars 1992-01-01 70336205 1997-01-01 199615972 2002-01-01 87930435 2003-01-01 68516278 2004-01-01 87818706 2005-01-01 113834465 2006-01-01 80874995 2007-01-01 110629014 2008-01-01 137331539 2009-01-01 152460917 2010-01-01 136584522 2011-01-01 174682387 2012-01-01 188163801 2013-01-01 279464471 2014-01-01 269338612 2015-01-01 296104985 2016-01-01 237890681