This percentage doesn't include men who use escorts or visit brothels.

Where are you getting this, that is not in the paper or any of the study criteria. You are just making shit up without having even read the paper fucktard

Participants were asked, “Thinking about the past year, about how often have you engaged in penile-vaginal intercourse?” Response options included: not at all, a few times in the past year, once a month, a few times per month, once a week, 2–3 times per week, and almost every day. Similar to measures used in prior studies (Laumann et al., 1994; Twenge et al., 2017) frequency of PVI in the past year is reported using a score ranging from 0 (not at all) to 6 (almost every day).

Participants were asked, “How recently have you…” (1) masturbated alone; (2) masturbated with a partner; (3) given oral sex to someone; (4) had someone give you oral sex; (5) had penile-vaginal intercourse; (6) had someone put their penis in your anus; or (7) (males only) put your penis in someone’s anus. Response options were: done in the past 30 days, done in the past 90 days, done in the past 6 months, done in the past year, done more than a year ago, and never done this.