The Swedish National Institute of Public Health did a large survey about sex in the late 90's and sexual orientation was one of the many issues. According to th

The Swedish National Institute of Public Health did a large survey about sex in the late 90's and sexual orientation was one of the many issues. According to that survey: ~1% identified themselves as homosexual ~4% identified themselves as bisexual in varying degrees ~5% could be labeled as bi-curious (tried it/want to try it) A further ~5% of men and ~15% of women had "fantasized about having sex with someone of the same sex at least once". So by being extremely generous with definitions, you could claim that ~80% of the population is completely straight, and that ~20% is therefore "LGBT". But that's stretching it way too far. A reasonable interpretation is that ~1% is gay, and ~5% is LGBT.