Year Dollars 1992-01-01 741170 2003-01-01 284255 2006-01-01 211184 2007-01-01 929842 2008-01-01 212635 2009-01-01 324578 2010-01-01 230701 2012-01-01 37810 2015-01-01 195256 2016-01-01 357104