Country population rate of natural increase (RNI) and rank for world countries for the year 1959
| Rank | Country | Rate of Natural Increase | Population |
|---|---|---|---|
| 1 | Nigeria | 2.804 | 40,367,758 |
| 2 | Bhutan | 2.595 | 206,619 |
| 3 | Djibouti | 2.274 | 105,993 |
| 4 | Guinea | 1.723 | 2,970,766 |
Data from US Census International Database