Total babies named Billijo (all years): 183
| Year | Girls (count / rank / %) |
|---|---|
| 2004 | 5 / #16491 / 0.000% |
| 1994 | 5 / #13703 / 0.000% |
| 1988 | 6 / #10515 / 0.000% |
| 1985 | 8 / #7635 / 0.000% |
| 1984 | 6 / #9256 / 0.000% |
| 1983 | 6 / #9138 / 0.000% |
| 1981 | 10 / #6375 / 0.001% |
| 1980 | 9 / #6843 / 0.001% |
| 1979 | 7 / #8130 / 0.000% |
| 1978 | 13 / #4958 / 0.001% |
| Year | Girls (count / rank / %) |
|---|---|
| 1977 | 8 / #6947 / 0.001% |
| 1976 | 9 / #6091 / 0.001% |
| 1975 | 16 / #3965 / 0.001% |
| 1974 | 7 / #6970 / 0.000% |
| 1973 | 13 / #4382 / 0.001% |
| 1972 | 8 / #6009 / 0.001% |
| 1971 | 13 / #4325 / 0.001% |
| 1970 | 12 / #4518 / 0.001% |
| 1969 | 5 / #7576 / 0.000% |
| 1968 | 5 / #7095 / 0.000% |
| Year | Girls (count / rank / %) |
|---|---|
| 1966 | 5 / #6652 / 0.000% |
| 1965 | 7 / #5329 / 0.000% |