Median or average...median wage is substantially less than the average wage.
It looks like you are quoting median.
source
http://politicalcalculations.blogspot.com/2005/04/average-wages-in-us.html
not exact i know but these threads are REALLY Starting to piss me off.
if us brits who pay twice as much for "Petrol" can afford it without crying then so can americans.