Thanks for the effort, but I don't think this kind of plot is appropriate to the type of data. A bar chart would be more useful.

I can't edit the post, so here's an update (bar by popular demand):

http://imageshack.us/photo/my-images/854/unledlauv.png/

Thank you very much - I don't understand why HN doesn't have at least a bar graph by default.

Why wouldnt you use a barchart?