How did the French Revolution and the Napoleonic Wars affect the demographics of France? Not only how many people died, but how many emigrated? And how did the birth rate change for that matter?
By the end of the 100 Days, would France have been exhausted from war? If so, would this be absolutely, or relatively to the other powers?
How many settled in French Illyria, the French Netherlands, and such?
EDIT: Side question: How would the Napoleonic French armies handle a hypothetical area with even worse infrastructure than Russia, but closer to France?