Total babies named Hatsuko (all years): 204
| Year | Girls (count / rank / %) |
|---|---|
| 1932 | 6 / #4107 / 0.001% |
| 1929 | 9 / #3243 / 0.001% |
| 1927 | 10 / #3155 / 0.001% |
| 1926 | 5 / #5186 / 0.000% |
| 1925 | 9 / #3497 / 0.001% |
| 1924 | 10 / #3237 / 0.001% |
| 1923 | 10 / #3222 / 0.001% |
| 1922 | 16 / #2331 / 0.001% |
| 1921 | 12 / #2844 / 0.001% |
| 1920 | 13 / #2653 / 0.001% |
| Year | Girls (count / rank / %) |
|---|---|
| 1919 | 12 / #2717 / 0.001% |
| 1918 | 23 / #1719 / 0.002% |
| 1917 | 13 / #2475 / 0.001% |
| 1916 | 17 / #1986 / 0.002% |
| 1915 | 12 / #2458 / 0.001% |
| 1914 | 5 / #3867 / 0.001% |
| 1913 | 13 / #1710 / 0.002% |
| 1911 | 9 / #1710 / 0.002% |