Year Dollars 1992-01-01 954102 1997-01-01 463536 2002-01-01 76361 2003-01-01 1191727 2004-01-01 126025 2006-01-01 1715711 2007-01-01 2191155 2008-01-01 2631359 2012-01-01 739547 2013-01-01 626333 2014-01-01 480602 2015-01-01 415965 2016-01-01 586708