The majority (> 80%) of adult men have accessed pornography at some point, and in the past year (40–70%); around half of younger men (25 or under) are weekly consumers; pornography use tapers-off with age

A Literature Review of Studies into the Prevalence and Frequency of Men’s Pornography Use. Dan J. Miller, Peter T. F. Raggatt & Kerry McBain. American Journal of Sexuality Education, Volume 15, 2020 - Issue 4, Pages 502-529, Oct 13 2020. https://doi.org/10.1080/15546128.2020.1831676

Rolf Degen's take: https://twitter.com/DegenRolf/status/1333763474472710150

Abstract: This review aims to provide information on the prevalence and frequency of adult males’ pornography use. It appears, the majority (> 80%) of adult men have accessed pornography at some point, and in the past year (40–70%). Around half of younger men (25 or under) are weekly consumers. Pornography use tapers-off with age. Relatively few (<10%) younger men have accessed violent pornography in the past year. The Internet is the primary method of access. Pornography use is associated with masturbation; use during partnered sex is less common. Differences in consumption rates between heterosexual and gay and bisexual men are discussed.

Keywords: Pornography, sexually explicit material, men, prevalence