Does the lesbian and gay community seriously account for 10% of the population?

I see the statistic of 10% tossed around a lot, but I’m finding it a little hard to believe.

Today at work I saw two women kissing, and it dawned on me that this is the first same sex couple we have had in the hotel all year. Sure, we probably had a few more and I just did not notice, but even so it’s the first couple I have noticed.

When I think of my day to day life, all the people I meet or know, it makes it hard for me to believe that the gay and lesbian account for 10% of the population. Based on my own day to day experience, I can’t bring my self to believe that they account for any more than 0.5% of the total population.

The number of same sex couples is really irrelevant, it has no effect on how I view them as fellow humans or anything, and has nothing to do my beliefs on what rights they should have, but I do find it quite interesting that the statistics say 10%.

How precise is this figure of 10%?

Is there really still that much stigma about it, that 95% of them still hide it? (The only explanation I can think of for me not noticing them)