This. Conservatives often will do these questions loaded to get the answers they want to report low numbers of LGBT people. Given the hostile atmosphere many gay people live in, it's no wonder that these surveys often have lower numbers than there are in reality. The way you conduct a survey, how you draw the people that are questioned, annonynimity issues, all can play a factor in fixing a survey to suit your agenda. From personal experience, 8 - 10% seems right to me. I'd ask though, how high does that percent have to be for a minority group to get equal rights and fair treatment? Whether the % is 1, 5 or 10, should it matter?