Sierra Leone population rate of natural increase (RNI) 1950 to 2100
| Year | Rate of Natural Increase | Population |
|---|---|---|
| 1975 | 1.9 | 3,036,737 |
| 1980 | 1.991 | 3,376,787 |
| 1985 | 2.262 | 3,787,642 |
| 1990 | 2.448 | 4,359,370 |
| 1995 | 2.393 | 4,114,221 |
| 2000 | 2.434 | 4,184,096 |
| 2005 | 2.406 | 5,271,649 |
| 2010 | 2.549 | 6,121,737 |
| 2015 | 2.58 | 7,150,013 |
| 2020 | 2.388 | 8,256,139 |
| 2024 | 2.179 | 9,121,049 |
| 2025 | 2.124 | 9,331,203 |
| 2026 | 2.079 | 9,539,924 |
| 2030 | 1.889 | 10,371,910 |
| 2035 | 1.692 | 11,399,388 |
| 2040 | 1.522 | 12,409,339 |
| 2045 | 1.377 | 13,398,620 |
| 2050 | 1.229 | 14,356,255 |
| 2055 | 1.115 | 15,277,606 |
| 2060 | 0.99 | 16,157,181 |
| 2065 | 0.867 | 16,978,613 |
| 2070 | 0.747 | 17,730,554 |
| 2075 | 0.632 | 18,405,056 |
| 2080 | 0.523 | 18,996,492 |
| 2085 | 0.417 | 19,500,818 |
| 2090 | 0.316 | 19,914,461 |
| 2095 | 0.216 | 20,233,769 |
| 2100 | 0.12 | 20,457,128 |
Data from US Census International Database