Looking for Data: Median Professional Degree Income by Country

I've tried searching for this for quite awhile now with no luck. Does anyone know of where I can find this data for a country other than the US?

I just want to know the median salary of individuals with a professional degree in various countries. The US article is here:

http://en.wikipedia.org/wiki/Househo..._United_States
(This is a long article, so do: Edit -> Find -> 103,918)

Thanks.

 

I don't know if you will find it, but it may be worth trying here:
http://webnet.oecd.org/wbos/

 

Thanks.

And sorry for the double post. If a moderator could delete my previous post that would be terrific.