Total babies named Rikka (all years): 54
| Year | Girls (count / rank / %) |
|---|---|
| 2007 | 5 / #19899 / 0.000% |
| 2005 | 6 / #16022 / 0.000% |
| 1991 | 8 / #10028 / 0.000% |
| 1990 | 10 / #8357 / 0.001% |
| 1986 | 5 / #12339 / 0.000% |
| 1982 | 5 / #11852 / 0.000% |
| 1979 | 5 / #11474 / 0.000% |
| 1977 | 5 / #10851 / 0.000% |
| 1975 | 5 / #10202 / 0.000% |