Total babies named Koan (all years): 81
| Year | Boys (count / rank / %) |
|---|---|
| 2024 | 9 / #8656 / 0.001% |
| 2023 | 7 / #10295 / 0.000% |
| 2022 | 6 / #11658 / 0.000% |
| 2020 | 5 / #13193 / 0.000% |
| 2018 | 5 / #13271 / 0.000% |
| 2017 | 7 / #10293 / 0.000% |
| 2016 | 8 / #9327 / 0.000% |
| 2014 | 5 / #13171 / 0.000% |
| 2012 | 7 / #10314 / 0.000% |
| 2009 | 6 / #11819 / 0.000% |
| Year | Boys (count / rank / %) |
|---|---|
| 2007 | 6 / #11741 / 0.000% |
| 2006 | 5 / #13144 / 0.000% |
| 2005 | 5 / #12513 / 0.000% |