well, how about that. It may be skewed taking some factors into account such as inflation. When Liverpool were the biggest spenders on Dean Saunders (£2.9 million) through to Collymore(£8.5 million) the figures were relatively low.
So in real terms, we could be even higher.
United's is skewed by the £80 mill they got for Ronaldo and haven't reinvested because of financial restraints possibly.
City's is because it's the most recent of course and prices tend to inflate wildly year on year.
Still, interesting.
And it's only from 1992 onwards ( when football was invented by Richard Keys.)