Total babies named Koji (all years): 611
| Year | Boys (count / rank / %) |
|---|---|
| 2024 | 25 / #4256 / 0.001% |
| 2023 | 33 / #3511 / 0.002% |
| 2022 | 26 / #4144 / 0.001% |
| 2021 | 19 / #5032 / 0.001% |
| 2020 | 12 / #6846 / 0.001% |
| 2019 | 15 / #5978 / 0.001% |
| 2018 | 14 / #6189 / 0.001% |
| 2017 | 13 / #6518 / 0.001% |
| 2016 | 28 / #3843 / 0.001% |
| 2015 | 17 / #5416 / 0.001% |
| Year | Boys (count / rank / %) |
|---|---|
| 2014 | 15 / #5883 / 0.001% |
| 2013 | 18 / #5083 / 0.001% |
| 2012 | 14 / #6181 / 0.001% |
| 2011 | 14 / #6118 / 0.001% |
| 2010 | 21 / #4613 / 0.001% |
| 2009 | 15 / #5968 / 0.001% |
| 2008 | 21 / #4638 / 0.001% |
| 2007 | 17 / #5331 / 0.001% |
| 2006 | 11 / #7218 / 0.001% |
| 2005 | 18 / #4743 / 0.001% |
| Year | Boys (count / rank / %) |
|---|---|
| 2004 | 13 / #6000 / 0.001% |
| 2003 | 14 / #5426 / 0.001% |
| 2002 | 13 / #5582 / 0.001% |
| 2001 | 10 / #6736 / 0.001% |
| 2000 | 14 / #5200 / 0.001% |
| 1999 | 7 / #8347 / 0.000% |
| 1998 | 9 / #6602 / 0.000% |
| 1996 | 7 / #7598 / 0.000% |
| 1995 | 13 / #4673 / 0.001% |
| 1994 | 5 / #9627 / 0.000% |
| Year | Boys (count / rank / %) |
|---|---|
| 1992 | 14 / #4233 / 0.001% |
| 1991 | 8 / #6256 / 0.000% |
| 1990 | 10 / #5211 / 0.000% |
| 1989 | 6 / #7481 / 0.000% |
| 1988 | 6 / #6884 / 0.000% |
| 1986 | 7 / #5684 / 0.000% |
| 1985 | 6 / #6195 / 0.000% |
| 1984 | 18 / #2656 / 0.001% |
| 1983 | 12 / #3537 / 0.001% |
| 1982 | 5 / #6912 / 0.000% |
| Year | Boys (count / rank / %) |
|---|---|
| 1980 | 5 / #6801 / 0.000% |
| 1975 | 6 / #5149 / 0.000% |
| 1974 | 7 / #4416 / 0.000% |
| 1973 | 5 / #5511 / 0.000% |
| 1972 | 9 / #3494 / 0.001% |
| 1926 | 6 / #3978 / 0.001% |
| 1925 | 5 / #4593 / 0.000% |
| 1922 | 5 / #4662 / 0.000% |