Total babies named Janssen (all years): 197
| Year | Boys (count / rank / %) |
|---|---|
| 2024 | 6 / #11477 / 0.000% |
| 2020 | 12 / #6784 / 0.001% |
| 2017 | 5 / #13100 / 0.000% |
| 2012 | 6 / #11387 / 0.000% |
| 2009 | 6 / #11592 / 0.000% |
| 2008 | 10 / #7948 / 0.000% |
| 2005 | 5 / #12200 / 0.000% |
| 2002 | 6 / #9923 / 0.000% |
| 2000 | 5 / #11123 / 0.000% |
| 1998 | 6 / #8951 / 0.000% |
| Year | Boys (count / rank / %) |
|---|---|
| 1997 | 5 / #9898 / 0.000% |
| 1994 | 5 / #9426 / 0.000% |
| 1993 | 6 / #8069 / 0.000% |
| 1992 | 9 / #5843 / 0.000% |
| 1991 | 5 / #8758 / 0.000% |
| 1990 | 6 / #7542 / 0.000% |
| 1989 | 6 / #7375 / 0.000% |
| 1987 | 7 / #5742 / 0.000% |
| 1986 | 7 / #5587 / 0.000% |
| 1985 | 5 / #6992 / 0.000% |
| Year | Boys (count / rank / %) |
|---|---|
| 1982 | 6 / #5963 / 0.000% |
| 1979 | 7 / #5066 / 0.000% |
| 1978 | 6 / #5361 / 0.000% |
| 1977 | 6 / #5431 / 0.000% |
| 1974 | 5 / #5562 / 0.000% |
| 1972 | 5 / #5307 / 0.000% |
| 1970 | 5 / #5046 / 0.000% |
| 1967 | 5 / #4233 / 0.000% |
| 1965 | 8 / #3100 / 0.000% |
| 1964 | 16 / #2070 / 0.001% |