var EX_LABOR_TABLE = POP_TABLE;
Are we definite that Labor in most cases represents a labor pool equal to ~10% of the population? Not pressing a case here, just asking.
The definition of the labor value is POP-1. So for the accuracy of the system this is correct. This comes from PE which wants simplicity for the war game aspect. If you want a more accurate labor count, I recommend TNE's World Tamer's Handbook.