Year Dollars 1992-01-01 1062564 1997-01-01 641393 2002-01-01 2593739 2003-01-01 4734247 2004-01-01 1784084 2005-01-01 3652023 2006-01-01 7973782 2007-01-01 16475440 2009-01-01 4778276 2010-01-01 173729812 2011-01-01 39761384 2012-01-01 53178136 2013-01-01 44864640 2014-01-01 301955761 2016-01-01 82144647