Year Dollars 1992-01-01 12558910 1997-01-01 1646540 2002-01-01 9194825 2003-01-01 4368580 2004-01-01 4247485 2005-01-01 4107871 2006-01-01 4490806 2007-01-01 7273239 2008-01-01 13467752 2009-01-01 7535245 2010-01-01 7027332 2011-01-01 12192676 2012-01-01 6713024 2013-01-01 7755459 2014-01-01 8383163 2015-01-01 5526645 2016-01-01 4525588