Year Dollars 1992-01-01 1730156 1997-01-01 1151899 2002-01-01 3694384 2003-01-01 584505 2004-01-01 2400168 2005-01-01 2190310 2006-01-01 10716643 2007-01-01 4181499 2008-01-01 7988383 2009-01-01 1970814 2010-01-01 1702489 2011-01-01 2493291 2012-01-01 2451007 2013-01-01 1242357 2014-01-01 1122440 2015-01-01 451697 2016-01-01 281736