Max Mafia You Can Have??

[tctt]

How is the max mafia you can have calculated?
I just noticed that when I add new mafia, my attack/defense doesn't change.
So I deleted some some of my "lower" mafia, added the "higher" ones, and my attack/defense increased.

Tks in advance.

[Max Power]

I just deleted a dozen of my lower level mafia and my stats didn't change at all.