The 1 in 71 figure was using something related to the FBI definition:
https://ucr.fbi.gov/crime-in-the-u.s/2013/crime-in-the-u.s.-2013/rape-addendum/rape_addendum_finalBeginning in 2013, rape is defined for Summary UCR purposes as, “Penetration, no matter how slight, of the vagina or anus with any body part or object, or oral penetration by a sex organ of another person, without the consent of the victim.” The new definition updated the 80-year-old historical definition of rape which was “carnal knowledge of a female forcibly and against her will.”
Up until 2012 the legal definition "rape" only covered women by the very wording, and the new version is still fundamentally gendered. Rape is when someone sticks something in you,so it assumes rapists have dicks by default. The legal definition excludes possible types of assault that we might consider to be someone raping another person (for example a woman intimately assaulting another woman isn't "technically" rape unless the victim is penetrated).
The 1 in 71 figure comes from the below report, however, it's using a definition of rape similar to the FBI one.
https://www.cdc.gov/violenceprevention/pdf/nisvs_report2010-a.pdfIn the report, the CDC created a new category to clear up the issue called "being made to penetrate". The wording is almost identical to the definition of rape, the only difference is that in "made to penetrate" the victim had a dick instead of the perpetrator.
Here's the CDC "Rape" definition (page 17):
Rape is defined as any completed or attempted unwanted vaginal (for women), oral, or anal
penetration through the use of physical force (such as being pinned or held down, or by the
use of violence) or threats to physically harm and includes times when the victim was drunk,
high, drugged, or passed out and unable to consent.
Here's the CDC "Being Made to Penetrate" definition (page 17):
Being made to penetrate someone else includes times when the victim was made to,
or there was an attempt to make them, sexually penetrate someone without the victim’s
consent because the victim was physically forced (such as being pinned or held down, or by
the use of violence) or threatened with physical harm, or when the victim was drunk, high,
drugged, or passed out and unable to consent.
Total "rape" victims, women, 12 months =
1,270,000 (Page 18, Table 2.1)
Total "made to penetrate" victims, men, 12 months =
1,267,000 (Page 19, Table 2.2)
These numbers warrant notice. When you measure non-consensual sex of both men and women, using fair language and a consistent methodology, in a comprehensive national survey, then the gender differences in the number of victims completely evaporate.
That's why citing the "1 in 71" thing as if it proves women don't assault men is bullshit. It excludes female assailants by design.
Ironically, Mary Koss, who was the founder of the CDC's methodology on this issue (she was famous from the campus rape surveys in the 1980s), wanted the "being made to penetrate" question added because she thought they could
lower the male rape figures even more by excluding these "made to penetrate" cases from the rape numbers.
It's almost deliciously ironic, in that she expected the male rape figures to be skewed to near-zero by separating out "made to penetrate" cases from the figures, but the male "made to penetrate" figures in fact turned out to be just as high as the female rape figures, but nobody had ever bothered to
ask men about it before.