I have membership and over 200 points in an increasing number (>12) of Stack Exchange sites.

I like the graph that shows all the various lines for each different site -  
<http://stackexchange.com/users/315778/michael-durrant?tab=reputation>

But I would like an option to see the *cumulative* total score (so not "<http://meta.stackoverflow.com/questions/86089/new-reputation-graph-line-chart-option>" - at least not the _answer_ given).  

My Stack Overflow score line is at a fairly constant angle but it would be fun to see my overall total line which would be mch more upward curved and additional motivation to use the site.