Individual Civ full booming times (according to my mathematical approach)

Alright, then I think it mainly comes from the second free villager. I am not good enough at the chinese early game and stay at 1 extra villager (2 after loom). I feel that need my sheeps to start under TC to achieve such a result 11

The 3 TCs save 400w like what the Dravidians get. I want saying the simulation isnt optimized, just that it highlights how close every civ is.