Receptive vaginal sex: 0.08% (1 transmission per 1,250 exposures)
Insertive vaginal sex: 0.04% (1 transmission per 2,500 exposures)
Receptive anal sex: 1.4% (1 transmission per 71 exposures.)
Insertive anal sex: 0.11% (1 transmission per 909 exposures)
[1] https://stanfordhealthcare.org/medical-conditions/sexual-and...