Is anyone else recording number of effective bans?

Just as some fun data to collect, I am recording how many effective bans I see for all of my drafts. An effective bans is ten minus the number of duplicates. So far, I've seen 7, 7, 8, 8, 9, 9, 9, and 10, with one of the 8s and one of the 9s having me not have banned anyone.