I would make this comment....for what it takes 100 French men to accomplish...the same could be done with sixty Japanese men.
No. Six Japanese men and their robot that they set up on the spot.
If no automation is permitted, then thirty Japanese.
I’d go farther and say that 100 ambitious Frenchmen couldn’t do the work of 60 average Japanese men. Sure there exceptions. But in sum? Hard work is ingrained in the very culture of Japan whereas avoiding hard work is the core culture of France.
Some of the highest divorce rates there are come from Japanese ‘salarymen’ working 16 hour days for months on end. The French? Find more than a handful that ever worked like that.