Total babies named Neizan (all years): 451
| Year | Boys (count / rank / %) |
|---|---|
| 2024 | 79 / #1975 / 0.005% |
| 2023 | 91 / #1779 / 0.005% |
| 2022 | 59 / #2397 / 0.003% |
| 2021 | 77 / #1950 / 0.004% |
| 2020 | 48 / #2646 / 0.003% |
| 2019 | 14 / #6312 / 0.001% |
| 2018 | 6 / #11739 / 0.000% |
| 2017 | 27 / #3948 / 0.001% |
| 2016 | 15 / #5971 / 0.001% |
| 2015 | 12 / #6965 / 0.001% |
| Year | Boys (count / rank / %) |
|---|---|
| 2013 | 11 / #7393 / 0.001% |
| 2012 | 7 / #10435 / 0.000% |
| 2011 | 5 / #13738 / 0.000% |