Year Dollars 1992-01-01 1016537 2002-01-01 324048 2003-01-01 416857 2004-01-01 1057767 2005-01-01 6749646 2006-01-01 6874395 2008-01-01 12454157 2009-01-01 26153198 2010-01-01 20562783 2011-01-01 32624947 2012-01-01 11562244 2013-01-01 6708109 2014-01-01 5772087 2015-01-01 21887558