Year	Dollars per Hour
2001-01-01	22.57
2002-01-01	22.98
2003-01-01	23.37
2004-01-01	23.35
2005-01-01	23.56
2006-01-01	26.54
2007-01-01	26.35
2008-01-01	28.02
2009-01-01	30.46
2010-01-01	31.06
2011-01-01	35.04
2012-01-01	32.13
2013-01-01	28.93
2014-01-01	23.23
2015-01-01	20.28
2016-01-01	18.67
2017-01-01	18.11