The following data show the chnages in the percentage of unmarried men in Japan by age between 1920 and 2010. 1920 1925 1930 1935 1940 1950 age men (%) men (%) men (%) men (%) men (%) men (%) 15-19 97.2 98.2 99.0 99.4 99.6 99.5 20-24 70.9 …