Total babies named Casonya (all years): 51
| Year | Girls (count / rank / %) |
|---|---|
| 1978 | 9 / #6458 / 0.001% |
| 1976 | 5 / #9489 / 0.000% |
| 1975 | 5 / #9255 / 0.000% |
| 1974 | 9 / #5817 / 0.001% |
| 1972 | 7 / #6647 / 0.000% |
| 1970 | 6 / #7169 / 0.000% |
| 1969 | 5 / #7617 / 0.000% |
| 1966 | 5 / #6690 / 0.000% |