Year Dollars 1992-01-01 11996589 1997-01-01 29174281 2002-01-01 25834249 2003-01-01 8550099 2004-01-01 26403981 2005-01-01 30337728 2006-01-01 72003361 2007-01-01 71096759 2008-01-01 65806925 2009-01-01 18655150 2010-01-01 22060471 2011-01-01 18812373 2012-01-01 30228581 2013-01-01 19154052 2014-01-01 24087374 2015-01-01 15443310 2016-01-01 19109595