Plot explanation: Offensive and defensive ratings are the estimated number of points teams score and allow per 100 possessions. Horizontal and vertical lines are league averages. Diagonal bands reflect net ratings, which are offensive ratings minus defensive ratings. The green dot-dash line is a net rating of +10, green dotted +5, red dotted -5, and red dot-dash -10).
Thanks to all for the great suggestions last time around :)!
Fantastic changes. Nice graph.