几组统计数据

1） https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5087699/
For women, having an orgasm from intercourse is much less guaranteed than for men. In 2015, 46% of women said that they always or nearly always had an orgasm when having intercourse, with only 6% of women reporting always having an orgasm. Nearly one in six (16%) women had an orgasm approximately half of the time and 38% of women had orgasms fairly infrequently at most. Over 16 years (1999–2015), women’s orgasmic capacity has declined considerably, from 56% of women experiencing orgasm in intercourse always or nearly always in 1999 to 46% in 2015 (χ2(20)=84.8, p=0.000). The decline is apparent among both young and middle aged women. In similar fashion, the proportion of women who have had an orgasm in the latest intercourse has diminished from 1999.
2）https://www.psychologytoday.com/us/blog/all-about-sex/200903/the-most-important-sexual-statistic
Only 25 percent of women are consistently orgasmic during vaginal intercourse.
This bears repeating: Only one-quarter of women reliably experience orgasm during intercourse—no matter how long it lasts, no matter what size the man's penis, and no matter how the woman feels about the man or the relationship.
3）https://abcnews.go.com/Health/ReproductiveHealth/sex-study-female-orgasm-eludes-majority-women/story?id=8485289
About 75 percent of all women never reach orgasm from intercourse alone -- that is without the extra help of sex toys, hands or tongue. And 10 to 15 percent never climax under any circumstances.
4）https://www.nbcnews.com/better/lifestyle/orgasm-gap-why-it-exists-what-women-can-do-about-ncna983311
According to a 2015 internet-based survey published in the Journal of Sex & Marital Therapy, which received responses from over 1,000 U.S. women, 36 percent reported that clitoral stimulation helped them orgasm during intercourse, whereas slightly more than 18 percent reported they orgasmed from intercourse alone.