Country population rate of natural increase (RNI) and rank for world countries for the year 1955
| Rank | Country | Rate of Natural Increase | Population |
|---|---|---|---|
| 1 | Nigeria | 2.772 | 35,954,557 |
| 2 | Bhutan | 2.585 | 186,282 |
| 3 | Djibouti | 2.187 | 90,367 |
| 4 | Guinea | 1.599 | 2,786,879 |
Data from US Census International Database