Gotta a source on that one?
There are lots of sources that attest to that. If you're referring to the ole 10% figure, well Kinsey basically made it up. That's what happens when you select 25% of your study participates from prison inmates and make sure a lot of them are sex offenders.
Here are the figures from past studies. Nationally, it's about 2.6% for men and 1.1% for women.
http://www.gothamgazette.com/article/20010701/5/598
Time and Newsweek magazines, both in April 26, 1993 issues, reported on these sexual survey results released by the Alan Guttmacher Institute, scarcely a conservative bastion regarding sexual issues: "Of the [3,321 American] men surveyed, only 2.3 percent reported any homosexual contacts in the last 10 years, and only half of those -- or just over 1 percent of the total -- said they were exclusively gay in that period" (Newsweek, "Sex in the Snoring '90s," p. 55, emphasis added).
The London Daily Mail released last week what it calls `the most exhaustive survey ever conducted into British sexual habits.' The most stunning finding was that only 1.1 percent of British men said they were active homosexuals, a figure similar to the most recent American polls" (World magazine, Jan. 29, 1994, p. 9).
And this one has a whole smattering of surveys. General concensus seems to be about 2-4% of the population claims to be gay and somewhere around 8% of the population has had an experience but does not identify with being gay.