表示怀疑，特定人群很难代表整体，抽样误差。
网上找到这段，应该是美国的数据：
The average ratio from several studies are that 9.56% of men are homosexual and 4.75% of women are homosexual.
The Indiana University Kinsey Reports (Sexual Behavior in the Human Male - Kinsey, Pomeroy, and Martin/Sexual Behavior in the Human Female - Kinsey, Pomeroy, Martin, and Gerhard) reported 10% of males being more or less exclusively homosexual and 2% to 6% of females being more or less exclusively homosexual.
A 1990 study (Homosexuality/Heterosexuality by McWhirter, Sanders, and Reinisch) stated 13.95% of males and 4.25% of females had "extensive" or "more than incidental" homosexual experience.
A 1993 study (The Janus Report on Sexual Behavior - Janus and Janus) found 9% of men and 5% of women were involved in frequent or ongoing homosexual experiences.
A 1994 study (The Social Organization of Sexuality: Sexual Practices in the United States - Laumann, Gagnon, Michael, Michaels) reported that the incidence rate of homosexual desire for men is 7.7% and 7.5% for women.
In 1995, a survey (The prevalence of homosexual behavior and attraction in the United States, the United Kingdom and France: Results of national population-based samples - Sell, Wells, and Wypij) reported 6.2, 4.5, and 10.7% of males and 3.6, 2.1, and 3.3% of females in the United States, the United Kingdom, and France, respectively, report having had sexual contact with someone of the same sex in the previous 5 years.
