OK, it seems that $5 of my money is not enough. And since I'm a lazy guy I've upped the winnings to $25 to whoever comes up with the best chart.
The rules are:
1. Create or find a chart you think will be the best.
2. E-mail it to me at firstname.lastname@example.org
3. I will post it here and the best chart by the time I get around to concluding the competition, wins.
Now get off your lazy asses and send me charts! Especially all you teachers that read this blog. $25 to some of your little rug rats is serious coin.