Done to death a few times!
http://www.pprune.org/forums/showthread.php?t=15896
and
http://www.pprune.org/forums/showthread.php?t=69159
Somewhere also we had a world-wide pilot 'vote' on the most popular speeds in the approach sequence (cannot find the thread) and I
think we arrived at 220 clean (suits most). 180 intermediate and 170 to 5