Year Dollars 1992-01-01 652384 1997-01-01 2332812 2002-01-01 5925130 2003-01-01 570850 2004-01-01 1538251 2005-01-01 1855915 2006-01-01 1872504 2007-01-01 3061636 2008-01-01 7670936 2009-01-01 18978646 2010-01-01 7191671 2011-01-01 5381164 2012-01-01 3333393 2013-01-01 3888313 2014-01-01 2702705 2015-01-01 3025474 2016-01-01 2137489