Total babies named Janus (all years): 168
| Year | Girls (count / rank / %) |
|---|---|
| 2019 | — |
| 2017 | — |
| 2010 | — |
| 2009 | — |
| 2002 | — |
| 1997 | — |
| 1972 | — |
| 1971 | 7 / #6884 / 0.000% |
| 1969 | 5 / #7913 / 0.000% |
| 1963 | 5 / #7017 / 0.000% |
| Year | Girls (count / rank / %) |
|---|---|
| 1960 | 5 / #6745 / 0.000% |
| 1958 | 7 / #5100 / 0.000% |
| 1956 | 16 / #2976 / 0.001% |
| 1953 | 9 / #4065 / 0.000% |
| 1952 | 9 / #3948 / 0.000% |
| 1951 | 10 / #3590 / 0.001% |
| 1950 | 5 / #5622 / 0.000% |
| 1949 | 7 / #4418 / 0.000% |
| 1948 | 6 / #4905 / 0.000% |
| 1947 | 9 / #3850 / 0.001% |
| Year | Girls (count / rank / %) |
|---|---|
| 1946 | 8 / #3808 / 0.001% |
| 1945 | 6 / #4249 / 0.000% |
| 1943 | 8 / #3629 / 0.001% |
| 1936 | 5 / #4503 / 0.000% |
| 1922 | — |