I don't get why folks still use the old version of the Sums Chart that has 1-through 27 sums on it when they could use the New(1-through- 10) Sums version that I named ......"The Short Sums Chart"  at least the new one is organized to have 10 equal parts .... all expected to hit the same amount of the time..... 10%.  You can plan ahead with equal distribution like that.

  Anyway..... for those who still use the old 1-27 chart here are some stats on digit distribution .....within those sums.

                                        The sum/digit distribution.

The following chart shows how often a certain digit occurs in a certain sum.

That is of course also interesting when selecting key numbers and sums....... e. g. if you want to play only the sums from 19 to 27 and your key number is 0 you will be out of luck with any suggestions.

Good Luck!