Total babies named Orba (all years): 85
| Year | Boys (count / rank / %) |
|---|---|
| 1933 | 5 / #4022 / 0.001% |
| 1931 | 5 / #4180 / 0.000% |
| 1929 | 5 / #4391 / 0.000% |
| 1924 | — |
| 1923 | 5 / #4723 / 0.000% |
| 1922 | — |
| 1921 | — |
| 1919 | 8 / #3309 / 0.001% |
| 1918 | — |
| 1917 | 8 / #3135 / 0.001% |
| Year | Boys (count / rank / %) |
|---|---|
| 1916 | — |
| 1914 | — |
| 1912 | 8 / #2006 / 0.002% |
| 1893 | — |