Original: Sexual Behavior in the Human Male, p. 651 7% of single females (ages 20-35) and 4% of previously married females (ages 20-35) were given a rating of 3 (about equal heterosexual and homosexual experience/response) on Kinsey Heterosexual-Homosexual Rating Scale for this period of their lives.
Simplified: Sexual Behavior in the Human Male, Table 147, p. 651 Women: 7% of single females aged 20-35 and 4% of previously married females aged 20-35 were given a rating of 3 for this period of their lives.