Year Dollars 1992-01-01 59015 1997-01-01 173484 2002-01-01 248571 2003-01-01 731859 2004-01-01 119034 2005-01-01 1659181 2006-01-01 135560 2007-01-01 129772 2008-01-01 676818 2009-01-01 501036 2010-01-01 268248 2011-01-01 265091 2012-01-01 501610 2013-01-01 261400 2014-01-01 541134 2015-01-01 621004 2016-01-01 1457785