The point which I was attempting to make earlier is that simply plotting the number of words against the number of PAX doesn't really prove anything, but it will convince some people that there is a direct link between the two.
If we were to look at how many new regulations relating specifically to PAX numbers were introduced when we went from the B747 to the A380 I suspect that we would find very few. But if we were to carry out the same exercise for the introduction of Autoland or Fly-by-wire I suspect that we would find a many more.