Total babies named Istvan (all years): 81
| Year | Boys (count / rank / %) |
|---|---|
| 2009 | 7 / #10267 / 0.000% |
| 2007 | 8 / #9216 / 0.000% |
| 2000 | 8 / #7733 / 0.000% |
| 1999 | 5 / #10552 / 0.000% |
| 1997 | 5 / #9853 / 0.000% |
| 1994 | 7 / #7270 / 0.000% |
| 1993 | 7 / #7110 / 0.000% |
| 1991 | 5 / #8730 / 0.000% |
| 1970 | 7 / #4016 / 0.000% |
| 1969 | 5 / #4668 / 0.000% |
| Year | Boys (count / rank / %) |
|---|---|
| 1968 | 5 / #4391 / 0.000% |
| 1963 | 7 / #3458 / 0.000% |
| 1962 | 5 / #4312 / 0.000% |