Total babies named Tadao (all years): 295
| Year | Boys (count / rank / %) |
|---|---|
| 1938 | 5 / #3977 / 0.000% |
| 1932 | 5 / #4226 / 0.000% |
| 1931 | 10 / #2630 / 0.001% |
| 1930 | 11 / #2591 / 0.001% |
| 1929 | 9 / #2953 / 0.001% |
| 1928 | 9 / #3054 / 0.001% |
| 1927 | 12 / #2513 / 0.001% |
| 1926 | 20 / #1782 / 0.002% |
| 1925 | 16 / #2076 / 0.001% |
| 1924 | 15 / #2213 / 0.001% |
| Year | Boys (count / rank / %) |
|---|---|
| 1923 | 26 / #1494 / 0.002% |
| 1922 | 21 / #1756 / 0.002% |
| 1921 | 13 / #2491 / 0.001% |
| 1920 | 26 / #1499 / 0.002% |
| 1919 | 22 / #1617 / 0.002% |
| 1918 | 15 / #2151 / 0.001% |
| 1917 | 13 / #2273 / 0.001% |
| 1916 | 13 / #2247 / 0.001% |
| 1915 | 19 / #1654 / 0.002% |
| 1914 | 9 / #2434 / 0.001% |
| Year | Boys (count / rank / %) |
|---|---|
| 1912 | 6 / #2509 / 0.001% |