Year Dollars 1997-01-01 1165351 2002-01-01 111853 2003-01-01 257221 2004-01-01 1260896 2005-01-01 196946 2006-01-01 433705 2007-01-01 1416116 2008-01-01 866827 2009-01-01 504933 2010-01-01 384165 2011-01-01 339543 2012-01-01 571462 2013-01-01 267576 2014-01-01 2277491 2015-01-01 4079751 2016-01-01 2356056