Year Dollars 1992-01-01 1819965 1997-01-01 2299212 2002-01-01 1875335 2003-01-01 3917807 2004-01-01 3458759 2005-01-01 4435876 2006-01-01 3930612 2007-01-01 22563983 2008-01-01 3951328 2009-01-01 11357363 2010-01-01 9059754 2011-01-01 5705014 2012-01-01 8227322 2013-01-01 7223114 2014-01-01 2859020 2015-01-01 4446766 2016-01-01 6962042