Actually it depends on the survey, its methodology, and its definition of sexual categories. However, most population surveys show a gender split - slightly more women identify as bisexual than lesbian but men are twice as likely to identify as gay than bisexual. Other surveys have shown that bisexuals are much less likely to publicly identify as non-heterosexual and are much less likely to view their sexuality as important in their lives. They are also the least politically active on LGBT issues and much more likely to dichotomize sex/love along gender lines - homosexual “partners” are just for sex with no emotion in early adulthood while heterosexual partners are preferred to settle down with for love and marriage. So, glibly claiming that bisexuals are somehow more numerous than us lowly fags matches the empirical evidence that many bisexuals suffer from heterosexual privilege. Until bisexuals come out and create a social identity that rejects heterosexism and homophobia then it matters very little that they check a box on some survey form.