Year Dollars 1992-01-01 212056368 1997-01-01 505055416 2002-01-01 270536109 2003-01-01 311378425 2004-01-01 411588943 2005-01-01 435863269 2006-01-01 346487434 2007-01-01 1628047965 2008-01-01 984821955 2009-01-01 485090379 2010-01-01 368674317 2011-01-01 547451296 2012-01-01 553619889 2013-01-01 577654942 2014-01-01 392415095 2015-01-01 496286152 2016-01-01 353028929