Total babies named Aizen (all years): 1,734
| Year | Boys (count / rank / %) |
|---|---|
| 2024 | 223 / #1003 / 0.013% |
| 2023 | 189 / #1115 / 0.011% |
| 2022 | 209 / #1051 / 0.012% |
| 2021 | 152 / #1251 / 0.009% |
| 2020 | 114 / #1488 / 0.007% |
| 2019 | 111 / #1523 / 0.006% |
| 2018 | 94 / #1680 / 0.005% |
| 2017 | 106 / #1540 / 0.006% |
| 2016 | 94 / #1674 / 0.005% |
| 2015 | 80 / #1848 / 0.004% |
| Year | Boys (count / rank / %) |
|---|---|
| 2014 | 65 / #2118 / 0.003% |
| 2013 | 71 / #1943 / 0.004% |
| 2012 | 56 / #2291 / 0.003% |
| 2011 | 68 / #1999 / 0.004% |
| 2010 | 47 / #2579 / 0.002% |
| 2009 | 27 / #3834 / 0.001% |
| 2008 | 19 / #4902 / 0.001% |
| 2007 | 9 / #8187 / 0.000% |