Year Dollars per Week 2001-01-01 313.34 2002-01-01 337.79 2003-01-01 354.52 2004-01-01 443.81 2005-01-01 405.96 2006-01-01 403.92 2007-01-01 400.34 2008-01-01 387.74 2009-01-01 403.09 2010-01-01 441.52 2011-01-01 392.00 2012-01-01 385.76 2013-01-01 401.24 2014-01-01 483.68 2015-01-01 552.65 2016-01-01 582.27