Total babies named Janzen (all years): 78
| Year | Boys (count / rank / %) |
|---|---|
| 2019 | 5 / #12960 / 0.000% |
| 2014 | 5 / #12887 / 0.000% |
| 2011 | 5 / #13138 / 0.000% |
| 2009 | 6 / #11593 / 0.000% |
| 2004 | 5 / #12142 / 0.000% |
| 1999 | 8 / #7463 / 0.000% |
| 1998 | 7 / #7941 / 0.000% |
| 1997 | 9 / #6311 / 0.000% |
| 1996 | 12 / #5007 / 0.001% |
| 1995 | 9 / #6133 / 0.000% |
| Year | Boys (count / rank / %) |
|---|---|
| 1994 | 7 / #7290 / 0.000% |