Year Dollars 1992-01-01 176969 1997-01-01 103488 2002-01-01 461831 2003-01-01 566449 2004-01-01 369084 2005-01-01 427874 2006-01-01 1746051 2007-01-01 479633 2008-01-01 2567116 2009-01-01 4274740 2011-01-01 236806 2012-01-01 383940 2013-01-01 206503 2014-01-01 619692 2016-01-01 346133