tercourse and require direct clitoral stimulation ... About 20% have coital climaxes ..."[15]↑ "Women rated clitoral stimulation as at least somewhat more important than vaginal stimulation in achieving orgasm; only about 20% indicated that they did not require additional clitoral stimulation during intercourse."[16]↑ "a. The amount of time of sexual arousal needed to reach orgasm is variable – and usually much longer – in women than in men; thus, only 20–30% of women attain a coital climax. b. Many women (70–80%) require manual clitoral stimulation ..."[17]↑ "In sum, it seems that approximately 25% of women always have orgasm with intercourse, while a narrow majority of women have orgasm with intercourse more than half the time ... According to the general statistics, cited in Chapter 2, [women who can consistently and easily have orgasms during unassisted intercourse] represent perhaps 20% of the adult female population, and thus cannot be considered representative."[20]ආශ්‍