Total babies named Naoko (all years): 67
| Year | Girls (count / rank / %) |
|---|---|
| 1993 | 7 / #11389 / 0.000% |
| 1992 | 6 / #12844 / 0.000% |
| 1990 | 6 / #12410 / 0.000% |
| 1988 | 5 / #13201 / 0.000% |
| 1986 | 5 / #12181 / 0.000% |
| 1983 | 6 / #9820 / 0.000% |
| 1982 | 9 / #7282 / 0.001% |
| 1981 | 5 / #11548 / 0.000% |
| 1980 | 6 / #9937 / 0.000% |
| 1979 | 7 / #8667 / 0.000% |
| Year | Girls (count / rank / %) |
|---|---|
| 1977 | 5 / #10706 / 0.000% |