Year Dollars per Week 2001-01-01 222.87 2002-01-01 236.39 2003-01-01 235.43 2004-01-01 227.62 2005-01-01 227.98 2006-01-01 229.68 2007-01-01 245.75 2008-01-01 277.88 2009-01-01 313.66 2010-01-01 323.07 2011-01-01 301.15 2012-01-01 289.85 2013-01-01 275.65 2014-01-01 284.20 2015-01-01 309.60 2016-01-01 314.64