Total babies named Castor (all years): 366
| Year | Boys (count / rank / %) |
|---|---|
| 2024 | 12 / #6887 / 0.001% |
| 2023 | 11 / #7359 / 0.001% |
| 2022 | 17 / #5473 / 0.001% |
| 2021 | 17 / #5372 / 0.001% |
| 2020 | 25 / #4040 / 0.001% |
| 2019 | 23 / #4352 / 0.001% |
| 2018 | 24 / #4250 / 0.001% |
| 2017 | 14 / #6100 / 0.001% |
| 2016 | 29 / #3702 / 0.002% |
| 2015 | 17 / #5336 / 0.001% |
| Year | Boys (count / rank / %) |
|---|---|
| 2014 | 18 / #5094 / 0.001% |
| 2013 | 17 / #5201 / 0.001% |
| 2012 | 15 / #5757 / 0.001% |
| 2011 | 10 / #7596 / 0.001% |
| 2010 | 9 / #8253 / 0.000% |
| 2009 | 13 / #6490 / 0.001% |
| 2008 | 8 / #9134 / 0.000% |
| 2007 | 8 / #9046 / 0.000% |
| 2006 | 11 / #6985 / 0.001% |
| 2005 | 9 / #7728 / 0.000% |
| Year | Boys (count / rank / %) |
|---|---|
| 2004 | 6 / #10165 / 0.000% |
| 2003 | 7 / #8801 / 0.000% |
| 2002 | 8 / #7756 / 0.000% |
| 2001 | 9 / #7010 / 0.000% |
| 2000 | 10 / #6384 / 0.001% |
| 1999 | 8 / #7246 / 0.000% |
| 1998 | 11 / #5524 / 0.001% |