Year Dollars 1992-01-01 829162 1997-01-01 712202 2002-01-01 1031692 2003-01-01 633127 2004-01-01 794146 2005-01-01 1427821 2006-01-01 521331 2007-01-01 1555305 2008-01-01 1868977 2009-01-01 5329561 2010-01-01 7349709 2011-01-01 2233056 2012-01-01 1402792 2013-01-01 1449338 2014-01-01 3708398 2015-01-01 4212716 2016-01-01 3166885