This might be a better visualisation. http://img145.imageshack.us/img145/5507/picture39fl7.png http://img145.imageshack.us/img145/5507/picture39fl7.png Note:I

This might be a better visualisation. http://img145.imageshack.us/img145/5507/picture39fl7.png http://img145.imageshack.us/img145/5507/picture39fl7.png Note:I used horizontal bars instead of vertical as I suggested in my other comment to remove the redundant labeling.