.
pp. 82-86:
The Japanese original of the above tables can be found at the following link:
The tables there are interactive and allow the results to be broken down into numerous categories: Men/women, age group, size of place of residence, region, schooling. If one chooses a specific year, the results are also specified by men/women and age groups. Without at least a rudimentary knowledge of Japanese, however, it may be difficult to use.
(It is also possible to browse through numerous other survey results via this link, and some of them are very informative).