The curves are displayed here:
Figure 1: Study of over 15,000 men shows that average erect penis size is just over 5 inches. Half of all men will be smaller and half will be bigger.
Here is an important quote from the paper:
“…The nomograms may be helpful clinically and in research to determine the discrepancy between what a man perceives to be their position on the nomogram and their actual position. Thus, Mondaini et al. [11] found that 48 men (71.7%) with small penis anxiety ‘seemed to be reassured about their normal penile size after a thorough explanation during the visit’. However, 50% of men might interpret being less than average as being defective or abnormal. Comparing one’s self or one’s attributes against others is a ‘double-edged sword’ [35] and may confirm perceived inadequacy. It is especially problematic in those with body image problems. Some may understand that by definition, half the population must be below average in a normal distribution. … "
David Veale, et al, BJU Int 2015; 115: 978–986 wileyonlinelibrary.com
HEY BROTHERS, REMEMBER, HALF OF YOU WILL BE ABOVE AVERAGE AND HALF WILL BE BELOW AVERAGE, it is important to realize that women say, 85% of the time that there partners penis is big enough. Here is another quote from the article:
An important observation also comes from Lever et al. [38] who found in a large internet survey of 52 031 heterosexual men and women, 85% of women were satisfied with their partner’s penis size, but only 55% of the men were satisfied with their own penis size. Thus, only 15% of women say that erect penis size is important and erect girth is generally more important than length [39]
The reference for this article is:
"Am I normal? A systematic review and construction of nomograms for flaccid and erect penis length and circumference in up to 15 521 men",
David Veale*†, Sarah Miles*, Sally Bramley‡, Gordon Muir§ and John Hodsoll*
*The Institute of Psychiatry, Psychology and Neuroscience, ‡King's College London Medical School, King's College London, †South London and Maudsley NHS Foundation Trust, §King's College NHS Foundation Trust, London, UK
Here is the link to the article
https://onlinelibrary.wiley.com/doi/pdf/10.1111/bju.13010
and i have also attached a pdf of the complete article to the end of this commuication.