Alternate Ability Score Generation 2

I talked previously about coming across an ability score generation table based on percentages rather than a 3d6 or 4d6 roll.  One of the principal things about this method that intrigues me is the great degree of flexibility it offers.  I made an initial attempt at what at graphing the altered probabilities of the various stats which looked like this:

 

What I really wanted to do from there was create graphs for each individual ethnic group Caliburn game to see what that might look like.  I used a bar graph this time since the line graph was getting a little hard to read.  Here is a look at that attempt...

A lot more tweaking is going to be required before finalizing these, but I think they are a step in the right direction.  I think I want to go even further in making each group's stat probabilities unique, reflecting the different circumstances in climate, technology, and genetics that each group sees. I also need to complete a graph for the fifth ethnic group, the Prydainians who I left out.  Oops!