Year Dollars 1992-01-01 3120454 1997-01-01 2119283 2002-01-01 502251 2003-01-01 904575 2004-01-01 1249174 2005-01-01 1048087 2006-01-01 594883 2007-01-01 375911 2008-01-01 4282912 2009-01-01 1862535 2010-01-01 3423042 2011-01-01 1943797 2012-01-01 18485459 2015-01-01 3666266 2016-01-01 2982251