Year Dollars 1992-01-01 265316701 1997-01-01 256683063 2002-01-01 238440873 2003-01-01 239741204 2004-01-01 236691568 2005-01-01 247096018 2006-01-01 256053210 2007-01-01 301482626 2008-01-01 306743887 2009-01-01 272605286 2010-01-01 339875533 2011-01-01 343813863 2012-01-01 384683954 2013-01-01 351622275 2014-01-01 334217666 2015-01-01 333328203 2016-01-01 317747924