Year Dollars 1992-01-01 471691 1997-01-01 869020 2002-01-01 1029974 2003-01-01 1104319 2004-01-01 1559763 2005-01-01 8480796 2006-01-01 2870144 2007-01-01 2462591 2008-01-01 2922506 2009-01-01 3685470 2010-01-01 4015798 2011-01-01 3634342 2012-01-01 3991121 2013-01-01 2934208 2014-01-01 3765305 2015-01-01 2700533 2016-01-01 3599996