Tonga - Natalidade
| Data | Taxa de natalidade | Taxa de fertilidade |
|---|---|---|
| 1981 | 35,08‰ | 5,53 |
| 1980 | 34,99‰ | 5,55 |
| 1979 | 34,67‰ | 5,54 |
| 1978 | 34,15‰ | 5,51 |
| 1977 | 33,59‰ | 5,47 |
| 1976 | 33,37‰ | 5,44 |
| 1975 | 33,27‰ | 5,43 |
| 1974 | 33,36‰ | 5,45 |
| 1973 | 33,66‰ | 5,51 |
| 1972 | 34,29‰ | 5,62 |
| 1971 | 35,26‰ | 5,76 |
| 1970 | 36,52‰ | 5,94 |
| 1969 | 38,02‰ | 6,15 |
| 1968 | 39,66‰ | 6,37 |
| 1967 | 41,26‰ | 6,59 |
| 1966 | 41,51‰ | 6,60 |
| 1965 | 42,11‰ | 6,66 |
| 1964 | 42,78‰ | 6,73 |
| 1963 | 43,28‰ | 6,77 |
| 1962 | 43,74‰ | 6,80 |
| 1961 | 44,23‰ | 6,84 |
| 1960 | 44,74‰ | 6,89 |