I don’t know a number and I am not going one arm fisherman on you , I will say overall my size has decreased both to age and diaper/ aide dependent, I am both bowel and urine incontinent . Until somebody invents a longer day I am the definition of 24/7 user
In the 1990's my wife and her girl friend measured me at 9 inch's erect . It took just a few years wearing diapers , plus old age that now , to my observation I appear to be about 5 or 6 inches now . ,,,,,,,,, when I can get erect ,,,,,,,,,If I can get erect,,,,,,,,,,, Wearing diapers it became apparent that something inside brakes down and part of the erection seems to be pushing in not out . Ahhhhh The days of old when knights were bold ……………