25 #SexFacts That May Surprise You @BuzzFeed

“A round of applause, please,” says David Spiegelhalter, author of Sex by Numbers, who brought BuzzFeed’s attention to these numbers. “And 26% said they had tried and failed.” The Kinsey data was collected between 1938 and 1963, though, so the numbers may have changed since then.

According to the British sex survey Natsal 3, only one act of heterosexual intercourse in 1,000 will end up with the woman getting pregnant. That’s mainly because of contraception, of course.

And 1.1% described themselves as “exclusively homosexual”, according to the US National Survey of Men, 1991.

That’s the rate of “parental discrepancy”, according to research published in the BMJ. Sometimes this figure is given as 30%, but Spiegelhalter says: “This an urban myth. That’s the rate in paternity testing services, and those are hardly a random sample of children.”

That’s according to US RDAs and this research.

More precisely, that’s the percentage of women who report having a same-sex partner in the last five years, according to Natsal 3.

According to the Kinsey data. That’s about the length of a dollar bill or £20 note.Although a more recent study suggests that’s an overestimate.

From a study of 914 heterosexual couples. The maximum recorded time was a gruelling 44 minutes.

According to Natsal 2, 12% of people report having two or more sexual partners at the same time. Spiegelhalter adds that there are claims that 70% of US women who’ve been married for more than five years are having affairs, but that stat, which comes from the feminist campaigner Shere Hite in the 1970s, “is highly unreliable: it was based on 3,000 responses out of 100,000 distributed questionnaires”.

Or rather, the current median age of first full sexual experience in Britain, according to Natsal 3.

According to Natsal 3. “For those without a current steady partner, the rate is 56%,” says Spiegelhalter.

According to Natsal 3.

According to Natsal 3.

According to Natsal 2. It means that they think either “one of us was more willing than the other”, “I wish I had waited longer”, “the main reason was peer pressure or because I was drunk or had taken drugs”, or “I did not use reliable contraception”.

According to the ONS. For comparison, there are only 58,000 in April. That’s an artifact of people having lots of sex at Christmas.

According to research published in PLOS One. That’s the energy contained in a very small glass of wine, a chocolate biscuit, or a bag of Wotsits. “But this went from 13 to 306 in men, and 12 to 164 in women, showing a range from extreme mellowness to athletic exuberance,” says Spiegelhalter.

From the report of committee on medical aspects of abortion, BMA, 1936. “In 2013 there were 185,000 registered abortions in England and Wales,” says Spiegelhalter.

According to this research.

According to this advert in the Syracuse Herald from that year.

Or more specifically, 1.2 million. That’s the population of Birmingham. Another Natsal 3 stat.

David Speigelhalter’s Sex by Numbers: What Statistics Can Tell Us About Sexual Behaviour is published today.

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