Governor throws races: +5 settlement
from: https://forums.totalwar.org/vb/showthread.php?t=75649

Action Points in Settlement/Points in Other Settlements
Races Thrown 5/0
from:
http://www.twcenter.net/forums/showp...33&postcount=4
http://www.twcenter.net/forums/showthread.php?t=77577

I think that means 5 points/turn.