the first time a poll had found majority support for same-sex marriage in Japan. An additional poll conducted by the National Institute of Population and Social Security Research in November 2015 showed a 51% majority in support of same-sex marriage, unions or partnerships, while 41% were opposed. People under the age of 20 were overwhelmingly in favor of same-sex marriage (72% support), whereas people aged 70 and over overwhelmingly opposed (24% support). A 2017 opinion poll released by the NHK showed that 51% of Japanese people supported same-sex marriage. According to an opinion poll carried out by Dentsu in October 2018, 78.4% of Japanese people in their 20s to 50s were in favour of same-sex marriage. Support was higher among women (87.9%) than men (69.2%), and was higher among younger respondents: 87.3% for people in their 20s, 81.2% for people in their 30s, 77.5% for people in their 40s, and 72.5% for people in their 50s. The National Survey of Household Trends, a government survey carried out in 2018 and commissioned by the National Institute of Population and Social Security Research, asked Japanese married women about their views on legalizing same-sex marriage. 71.9% of respondents chose one of the two answers in favour of it. Levels of support were different between the different age groups: 92.1% for married women under the age of 30, 89.5% for those between the ages of 30 and 39, 83.2% for those between the ages of 40 and 49, 73.5% for those between 50 and 59, 59.3% for those between 60 and 69, and 42.2% for those aged 70 and higher. A 2019 opinion survey conducted by the Hiroshima Shudo University and published in November 2020 showed that 64.8% of Japanese people supported same-sex marriage, while 30.0% were opposed. Attitudes varied greatly with age, with 81% of 20–30-year-olds supporting, followed by 74% of people in their 40s and 50s, and 47% of people in their 60s and 70s. A joint survey by the University of Tokyo and The Asahi Shimbun, conducted between March and April 2020, showed that 46% of Japanese people favored same-sex marriage, 31% were neutral and 23% were opposed. Among supporters of the Liberal Democratic Party (LDP), support stood at 41% and opposition at 29%. This contrasted significantly with the opinions of LDP lawmakers, as a 2019 survey conducted shortly before the House of Councillors election showed that only 9% of LDP