Total babies named Kei (all years): 823
| Year | Boys (count / rank / %) |
|---|---|
| 2024 | 22 / #4624 / 0.001% |
| 2023 | 26 / #4166 / 0.002% |
| 2022 | 17 / #5540 / 0.001% |
| 2021 | 15 / #5899 / 0.001% |
| 2020 | 18 / #5144 / 0.001% |
| 2019 | 22 / #4562 / 0.001% |
| 2018 | 25 / #4154 / 0.001% |
| 2017 | 25 / #4180 / 0.001% |
| 2016 | 30 / #3647 / 0.002% |
| 2015 | 33 / #3401 / 0.002% |
| Year | Boys (count / rank / %) |
|---|---|
| 2014 | 25 / #4077 / 0.001% |
| 2013 | 19 / #4894 / 0.001% |
| 2012 | 16 / #5607 / 0.001% |
| 2011 | 11 / #7264 / 0.001% |
| 2010 | 6 / #11508 / 0.000% |
| 2009 | 14 / #6282 / 0.001% |
| 2008 | 17 / #5373 / 0.001% |
| 2007 | 13 / #6455 / 0.001% |
| 2006 | 12 / #6692 / 0.001% |
| 2005 | 12 / #6430 / 0.001% |
| Year | Boys (count / rank / %) |
|---|---|
| 2004 | 18 / #4693 / 0.001% |
| 2003 | 13 / #5725 / 0.001% |
| 2002 | 11 / #6320 / 0.001% |
| 2001 | 14 / #5287 / 0.001% |
| 2000 | 15 / #4923 / 0.001% |
| 1999 | 8 / #7524 / 0.000% |
| 1998 | 11 / #5660 / 0.001% |
| 1997 | 13 / #4815 / 0.001% |
| 1996 | 5 / #9797 / 0.000% |
| 1995 | 10 / #5718 / 0.001% |
| Year | Boys (count / rank / %) |
|---|---|
| 1994 | 10 / #5679 / 0.001% |
| 1993 | 5 / #9484 / 0.000% |
| 1992 | 11 / #5075 / 0.001% |
| 1991 | 15 / #3924 / 0.001% |
| 1990 | 11 / #4847 / 0.001% |
| 1989 | 9 / #5393 / 0.000% |
| 1988 | 5 / #7919 / 0.000% |
| 1987 | 6 / #6549 / 0.000% |
| 1986 | 7 / #5658 / 0.000% |
| 1985 | 7 / #5465 / 0.000% |
| Year | Boys (count / rank / %) |
|---|---|
| 1984 | 9 / #4389 / 0.001% |
| 1983 | — |
| 1982 | 10 / #4097 / 0.001% |
| 1981 | — |
| 1980 | 8 / #4739 / 0.000% |
| 1979 | 9 / #4238 / 0.001% |
| 1978 | — |
| 1977 | 6 / #5497 / 0.000% |
| 1925 | 7 / #3577 / 0.001% |
| 1920 | 6 / #4052 / 0.001% |