I think that you are probably just looking at the top 200. If you scroll to the bottom of the rankings page, you can display all the teams and it will show everyone. I am sure a lot of those teams are ranked.
anyway, thanks for doing that. I am sure it was a lot of work, and really interesting.
I wonder what the average difference is and who has the biggest difference. I am guessing Swamp Boys or a team like that.