Year Dollars 1992-01-01 1078918 1997-01-01 1147957 2002-01-01 2082917 2003-01-01 1321030 2004-01-01 3619008 2005-01-01 2464283 2006-01-01 4743970 2007-01-01 7023816 2008-01-01 7021500 2009-01-01 6020747 2010-01-01 8891017 2011-01-01 8254243 2012-01-01 5818898 2013-01-01 5724634 2014-01-01 5311107 2015-01-01 5157656 2016-01-01 10931277