%pl = % of programming language jobs

                    permanent                contract
language        %pl     avg sal         %pl        avg daily
C#              33.32   40000           24.73      375
Java            26.39   47500           23.45      425
C               6.598   40375           6.834      375
Perl            5.103   45000           3.949      400
Python          5.275   45000           3.414      425
COBOL           0.244   47500           0.337      356

Currency=GBP.  Based on
http://www.itjobswatch.co.uk/contracts/uk/cobol.do etc etc etc.