Roughly the same discrepancy exists in those reporting they have a spouse (13.6% to 19.8%). Since I don't think polygamy is legal in Japan, this is likely an ar

Roughly the same discrepancy exists in those reporting they have a spouse (13.6% to 19.8%). Since I don't think polygamy is legal in Japan, this is likely an artifact of the fact they're only asking people in their 20s, and women in marriages and "lover" arrangements tend to be younger than the man.