Question Author
Hi, Thanks for your trouble but I may have misled you by being inaccurate. I think that if you take a set of random numbers then each digit (1 - 0) has the same chance of being the final one. As your results tend to show. What I was trying to say, but badly, was that if you use real data then the final digits do show this characteristic
say 20% 1s, 15% 2s, 12% 3s, 10% 4s, 9% 5s etc.
And I think that this fact is actually used by accountants when checking say, expenses.