Total babies named Twania (all years): 63
| Year | Girls (count / rank / %) |
|---|---|
| 1979 | 9 / #7292 / 0.001% |
| 1978 | 6 / #9692 / 0.000% |
| 1976 | 8 / #7262 / 0.001% |
| 1974 | 7 / #7643 / 0.000% |
| 1972 | 5 / #9590 / 0.000% |
| 1971 | 6 / #8271 / 0.000% |
| 1970 | 5 / #9285 / 0.000% |
| 1968 | 5 / #8136 / 0.000% |
| 1964 | 5 / #7746 / 0.000% |
| 1963 | 7 / #5855 / 0.000% |