This will depend on who's doing the survey
According to survey made by Planet Romeo, an Amsterdam-based dating and community site, in collaboration with the Johannes Gutenberg University of Mainz in Germany have carry out an online survey of 115,000 gay men around the world. They combined rankings on public opinion, public behavior and life satisfaction – how gay men feel about society’s view on homosexuality, how gay men feel they are treated by other people, and how satisfied gay men are with their own lives, respectively – into one worldwide ranking on gay happiness.
This survey was made May 2015 https://www.washingtonpost.com/news/wonk/wp/2015/05/27/the-countries-where-gay-men-are-the-happiest/