
"There is a possibility that one third of males in their 20s will be unmarried throughout their lifetime." was published in my web.
http://dandoweb.com/e/unmarried.html
I have analyzed the result of Japan's national census.
The increase in the lifelong unmarried ratio is accelerating, and there is a high possibility that one fourth of males in their late 30s will be unmarried throughout their life and one third of males in their late 20s will be single for their entire life...