2018-01-01 生涯未婚率の推移 / Ratio of people who have never married before 50-year old in Japan politics English 朝日新聞社とYahoo!ニュースの共同企画:連載「平成家族」(1) news.yahoo.co.jp Ratio of people who have never married before 50-year old in Japan (quoted from the linked page) 我希望中国作为他山之石。