Total babies named Rotha (all years): 159
| Year | Girls (count / rank / %) |
|---|---|
| 1983 | — |
| 1948 | 6 / #5151 / 0.000% |
| 1946 | 5 / #5557 / 0.000% |
| 1945 | 6 / #4454 / 0.000% |
| 1941 | 9 / #3207 / 0.001% |
| 1937 | 8 / #3386 / 0.001% |
| 1933 | 5 / #4756 / 0.001% |
| 1932 | 6 / #4334 / 0.001% |
| 1930 | 6 / #4477 / 0.001% |
| 1926 | 13 / #2687 / 0.001% |
| Year | Girls (count / rank / %) |
|---|---|
| 1925 | 6 / #4875 / 0.000% |
| 1924 | 7 / #4368 / 0.001% |
| 1923 | 8 / #3911 / 0.001% |
| 1922 | 11 / #3123 / 0.001% |
| 1921 | 6 / #5007 / 0.000% |
| 1919 | 9 / #3418 / 0.001% |
| 1918 | 5 / #5461 / 0.000% |
| 1916 | 7 / #3866 / 0.001% |
| 1915 | 5 / #4847 / 0.001% |
| 1912 | 7 / #2594 / 0.001% |
| Year | Girls (count / rank / %) |
|---|---|
| 1911 | 6 / #2419 / 0.001% |
| 1907 | 7 / #1788 / 0.002% |
| 1898 | 5 / #1931 / 0.002% |