Total babies named Rosan (all years): 97
| Year | Girls (count / rank / %) |
|---|---|
| 1968 | 8 / #5529 / 0.000% |
| 1961 | 8 / #5212 / 0.000% |
| 1959 | 5 / #7023 / 0.000% |
| 1958 | 6 / #5974 / 0.000% |
| 1957 | 8 / #4835 / 0.000% |
| 1956 | 8 / #4762 / 0.000% |
| 1955 | 6 / #5706 / 0.000% |
| 1952 | 5 / #6251 / 0.000% |
| 1950 | 6 / #5183 / 0.000% |
| 1947 | 6 / #5184 / 0.000% |
| Year | Girls (count / rank / %) |
|---|---|
| 1945 | 8 / #3627 / 0.001% |
| 1944 | 5 / #5126 / 0.000% |
| 1943 | 8 / #3757 / 0.001% |
| 1941 | 5 / #4959 / 0.000% |
| 1939 | 5 / #4825 / 0.000% |