Year Dollars 1992-01-01 141395 1997-01-01 283682 2002-01-01 1908318 2003-01-01 523831 2004-01-01 1646217 2005-01-01 197265 2006-01-01 325674 2007-01-01 3780371 2008-01-01 1340571 2009-01-01 1272395 2010-01-01 2442543 2011-01-01 2403898 2012-01-01 2347679 2013-01-01 2576205 2014-01-01 2566798 2015-01-01 4526774 2016-01-01 3141647