Government numbers in France show 80.2% today ("The figure gives the share of the population over the age of 12 that are fully vaccinated (all required doses")
Yeah, "over the age of 12", that isn't 80% fully vaccinated, it's 80% of over 12s fully vaccinated. Which is a useful measure of administrative effectiveness when the vaccine is not being given to people under 12, but it isn't 80% of the total population.
Are your numbers percent of adults or including people that have recovered from infection or something?