Year Dollars 1992-01-01 183359 1997-01-01 234756 2002-01-01 142555 2004-01-01 341248 2005-01-01 754850 2006-01-01 319460 2008-01-01 601996 2009-01-01 446403 2010-01-01 185318 2011-01-01 155014 2012-01-01 357021 2013-01-01 322554 2014-01-01 1902265 2015-01-01 510328 2016-01-01 269526