Total babies named Hisao (all years): 147
| Year | Boys (count / rank / %) |
|---|---|
| 1932 | 6 / #3549 / 0.001% |
| 1931 | 7 / #3232 / 0.001% |
| 1930 | 7 / #3429 / 0.001% |
| 1929 | 7 / #3381 / 0.001% |
| 1928 | 8 / #3214 / 0.001% |
| 1927 | 9 / #3016 / 0.001% |
| 1926 | 14 / #2246 / 0.001% |
| 1925 | 12 / #2499 / 0.001% |
| 1924 | 8 / #3363 / 0.001% |
| 1923 | 9 / #3056 / 0.001% |
| Year | Boys (count / rank / %) |
|---|---|
| 1922 | 17 / #1988 / 0.002% |
| 1921 | 7 / #3680 / 0.001% |
| 1920 | 11 / #2668 / 0.001% |
| 1919 | 7 / #3562 / 0.001% |
| 1918 | 7 / #3514 / 0.001% |
| 1915 | 6 / #3592 / 0.001% |
| 1909 | 5 / #1567 / 0.003% |