Year Dollars 1992-01-01 228930 1997-01-01 5898401 2002-01-01 1576187 2003-01-01 1061967 2004-01-01 999662 2005-01-01 1328987 2006-01-01 711681 2007-01-01 1015869 2008-01-01 3739794 2009-01-01 3788278 2010-01-01 9699093 2011-01-01 13034666 2012-01-01 13301489 2013-01-01 7765395 2014-01-01 8160560 2015-01-01 6001155 2016-01-01 3172224