Total babies named Tiwan (all years): 133
| Year | Boys (count / rank / %) |
|---|---|
| 2007 | 5 / #14200 / 0.000% |
| 2000 | 7 / #9040 / 0.000% |
| 1999 | 6 / #9799 / 0.000% |
| 1996 | 8 / #7071 / 0.000% |
| 1993 | 7 / #7557 / 0.000% |
| 1992 | 6 / #8357 / 0.000% |
| 1988 | 9 / #5176 / 0.000% |
| 1983 | 5 / #7249 / 0.000% |
| 1982 | 6 / #6327 / 0.000% |
| 1980 | 7 / #5479 / 0.000% |
| Year | Boys (count / rank / %) |
|---|---|
| 1979 | 5 / #6989 / 0.000% |
| 1978 | 5 / #6680 / 0.000% |
| 1977 | 9 / #4139 / 0.001% |
| 1976 | 8 / #4390 / 0.001% |
| 1975 | 9 / #3927 / 0.001% |
| 1974 | 9 / #3813 / 0.001% |
| 1973 | 6 / #5038 / 0.000% |
| 1972 | 6 / #4950 / 0.000% |