http://www.ncbi.nlm.nih.gov/pubmed/12937799 Studies on self-esteem of penile size in young Korean military men.
The mean flaccid length, flaccid circumference, stretched length and fat pad depth of the 123 subjects were (6.9+/-0.8) cm, (8.5+/-1.1) cm, (9.6 +/-0.8) cm and (1.1 +/-0.4) cm, respectively. The answer distribution on penile size was 1 (0.8 %) 'very small', 29 (23.6 %) 'small', 86 (69.9 %) 'normal', 6 (4.9 %) 'large' and 1 (0.8%) 'very large'.