Year Dollars 1992-01-01 134355 1997-01-01 566777 2002-01-01 378620 2003-01-01 521769 2004-01-01 1399056 2005-01-01 900337 2006-01-01 3342832 2008-01-01 2809119 2009-01-01 3380035 2010-01-01 3769608 2011-01-01 2814628 2012-01-01 8797169 2013-01-01 2983343 2014-01-01 8723068 2015-01-01 4245236 2016-01-01 3180435