Total babies named Yasuko (all years): 294
| Year | Girls (count / rank / %) |
|---|---|
| 1979 | 5 / #11949 / 0.000% |
| 1940 | 5 / #5016 / 0.000% |
| 1938 | 5 / #4987 / 0.000% |
| 1937 | 7 / #3795 / 0.001% |
| 1935 | 5 / #4885 / 0.000% |
| 1933 | 5 / #4853 / 0.001% |
| 1932 | 8 / #3564 / 0.001% |
| 1931 | 13 / #2424 / 0.001% |
| 1930 | 15 / #2303 / 0.001% |
| 1929 | 15 / #2300 / 0.001% |
| Year | Girls (count / rank / %) |
|---|---|
| 1928 | 11 / #2951 / 0.001% |
| 1927 | 12 / #2854 / 0.001% |
| 1926 | 17 / #2254 / 0.001% |
| 1925 | 15 / #2486 / 0.001% |
| 1924 | 19 / #2135 / 0.002% |
| 1923 | 18 / #2168 / 0.001% |
| 1922 | 15 / #2478 / 0.001% |
| 1921 | 22 / #1925 / 0.002% |
| 1920 | 16 / #2355 / 0.001% |
| 1919 | 20 / #1920 / 0.002% |
| Year | Girls (count / rank / %) |
|---|---|
| 1918 | 11 / #3021 / 0.001% |
| 1917 | 14 / #2425 / 0.001% |
| 1916 | 6 / #4404 / 0.001% |
| 1915 | 10 / #2896 / 0.001% |
| 1913 | 5 / #3701 / 0.001% |