How hard would it be to program a macro or program to...

[Jurollo]

Plot the ups and downs of one's stack in a tournament history. For instance you were down to t400 and fought back, lost some, gained more. Just a simple line graph perhaps with the ability to import more than 1 tourney, for me it would be interesting to see the fluctuation of my stack during longer runs in tournies compared to shorter ones. Any thoughts? Any programmers have an idea how hard this would be? Could be a cool little tool, and I would imagine it wouldn't be incredibly hard to make.
~Justin