Year Dollars 1997-01-01 3437670 2002-01-01 1571920 2003-01-01 1274288 2004-01-01 3510468 2005-01-01 3570263 2006-01-01 385265 2007-01-01 3911930 2008-01-01 3951120 2009-01-01 1644988 2010-01-01 1285481 2011-01-01 1611774 2012-01-01 4520952 2013-01-01 4240553 2014-01-01 3221959 2015-01-01 2228352 2016-01-01 1543659