After a lifetime of watching a scattered collection of different women, I'd have to assume that when a woman answers that question in the affirmitive it's because she's had a considerable amount of experience. I was going to say practice, but I think that many women are naturally promiscuous, and pursue sexual activities unaware that they are being biologically driven to do so. By the nature of the question the issue of infidelity is left unaddressed, however, if the data is correct, it is exactly the desire for sexual experience that contributes to the majority of faithfulness disfunction. Given that answers given concerning physiological changes that occur beyond a cetain age, one could, I assume correctly, that the majority of women, who had been reluctant to engage numerous sexual partners, would be or should be receptive to increased levels of sexual activity, whether they are married or not, and would probably be the very ones who would seek out sexual liasions with men younger than themselves.
This isn't a condemnation of women as much as my observations throughout my life. I truly believe that at times women, much like men, are driven blindly by biology to engage in sex with any willing provider.