Year Dollars 1992-01-01 800759 1997-01-01 975895 2002-01-01 1710567 2003-01-01 3716492 2004-01-01 5749856 2005-01-01 3916599 2006-01-01 2069673 2007-01-01 2241179 2008-01-01 2864003 2009-01-01 3177590 2010-01-01 2995236 2011-01-01 2615598 2012-01-01 3842204 2014-01-01 2645737 2015-01-01 4660964 2016-01-01 2851769