There are several sources that make a claim like that, I'm giving some of them: We don’t do sex work because we are poor, we do sex work to end our poverty Key sentence in that link: We are also the backbone of the tourism industry, which makes up around 10% of Thailand’s annual GDP. Sex toys popular in Thailand despite conservative laws Key sentence in that link: The sex industry is thought to comprise up to 10% of Thailand’s gross domestic product. Sun, sea, sand... and a £5bn sex tr...