Total babies named Cythnia (all years): 108
| Year | Girls (count / rank / %) |
|---|---|
| 1979 | 5 / #10526 / 0.000% |
| 1974 | 5 / #9051 / 0.000% |
| 1972 | 6 / #7468 / 0.000% |
| 1971 | 8 / #6117 / 0.000% |
| 1970 | 8 / #5922 / 0.000% |
| 1969 | 5 / #7683 / 0.000% |
| 1966 | 9 / #4556 / 0.001% |
| 1965 | 7 / #5385 / 0.000% |
| 1964 | 5 / #6949 / 0.000% |
| 1963 | 10 / #4311 / 0.001% |
| Year | Girls (count / rank / %) |
|---|---|
| 1962 | 6 / #5994 / 0.000% |
| 1961 | 6 / #5967 / 0.000% |
| 1960 | 5 / #6542 / 0.000% |
| 1959 | 5 / #6449 / 0.000% |
| 1958 | 10 / #3984 / 0.001% |
| 1955 | 8 / #4452 / 0.000% |