Do a 15 second Google search. It's not difficult at all.

"It is estimated that more than half of men aged 40-70 experience some form of ED." https://www.mayoclinic.org/diseases-conditions/erectile-dysfunction/symptoms-causes/syc-20355776

"... estimated the prevalence of ED in young men to be as high as 30%."
https://pubmed.ncbi.nlm.nih.gov/28642047/