Among the 32 places surveyed, support for legal same-sex marriage is highest in Sweden, where 92% of adults favor it, and lowest in Nigeria, where only 2% back it.
Despite major changes in laws and norms surrounding the issue of same-sex marriage and the rights of LGBT people around the world, public opinion on the acceptance of homosexuality in society remains sharply divided by country, region and economic development.
Among the changes: Smartphones and social media became the norm, church attendance fell, and same-sex marriage and legalizing marijuana gained support.