Year Dollars 1992-01-01 4025274 1997-01-01 25465757 2002-01-01 3039056 2003-01-01 9330165 2004-01-01 87565703 2005-01-01 48501802 2006-01-01 18627191 2007-01-01 29551440 2008-01-01 38090090 2009-01-01 15048373 2010-01-01 16968250 2011-01-01 20518959 2012-01-01 41148570 2013-01-01 40370048 2014-01-01 19493115 2015-01-01 27056390 2016-01-01 32754436