There is some discussion that this table doesn't work or do anything. I have seen mods where the modders claim that the values should not go above 2. Some set them to 999.

Obviously, higher values means higher likelihood of taking on that task.

I have balanced this table to try to keep the ai from doing the dumb things it general does:
Positioning armies across the map from its home base, not defending or following through with recent captures, not doing much at all and just camping out at one's border, building massive navies, overusing agents, raiding and sacking.

I am guessing that it is best to limit the task value total of each generator group below a certain value total. For ex, assign high values for aggressive actions to aggressive groups, but give them low assignment values on less aggressive tasks like defending threatened regions.