Oh, I can't stop laughing! :biggrin1: Some studies cannot be mentioned due to diplomatic dispute...oh, please, make it stop!This site has by far the most documented surveys. It also tells you whether the survey is based on self-report or measurement, which explains the French and Hungarian results.
Penis Size Average Results by Country
Studies results are summarized in this website; however some sources can not be mentioned, due to diplomatic dispute and reputation of scientific institutes.