What’s the frequency, Kenneth?

Therapist [split screen]: Do you have sex often?
Woody Allen: [lamenting] Hardly ever. Maybe three times a week.
Diane Keaton: [annoyed] Constantly. I’d say three times a week.

-From “Annie Hall”

According to some statistics, married couples have sex an average of 98 times per year (just less than twice a week). Overall, Americans have sex 132 per year, with cohabitating couples having the most sex and singles having the least. (Also, 45% of respondents have had a one-night stand, while 48% of the women surveyed admit to faking orgasms.)

Casual, anecdotal evidence and talks with friends suggests that in some relationships, this becomes a very big deal. What’s the right frequency for sex? To what extent does this differ across gender lines? Do you wish you had sex more often? Less often?

To what extent do libido/frequency issues play a role in your relationship? How do you discuss or resolve those issues?