What the graphs below show is the distribution of the above rates for different teams. The graphs are just estimated curves from a histogram of the individual rates. If there's more spread (like Vancouver) it means that the team has some excellent players and some terrible players. The other extreme is a tiny spread, such as New Jersey. You can also see the approximate averages for the teams from the graphs.
This is just a messy graph of all the teams together. I post it only so you can see the context of some of the divisional graphs above.