you can take it as many times as you want.
If you want your students to all take it (and they correctly fill out team number) I can copy/paste the result table for you so you can see how they all did.
I also would like feedback on any wrong answers people get to make sure I don't have mistakes. I took it about 5 times myself to be sure. I did make some of them tricky on purpose

, but nothing that can't be solved without the rulebook.
EDIT:
I had a problem with the team number field, so I changed the rookie year field to team number. Unfortunately I won't get the rookie year data, but that's ok.
The first 10 or so people who took the quiz have no team number recorded as a result. Sorry!