Cook Islands population rate of natural increase (RNI) 1950 to 2100
| Year | Rate of Natural Increase | Population |
|---|---|---|
| 1995 | 2.241 | 18,251 |
| 2000 | 1.692 | 16,258 |
| 2005 | 1.187 | 13,563 |
| 2010 | 0.82 | 11,459 |
| 2015 | 0.601 | 9,802 |
| 2020 | 0.422 | 8,539 |
| 2024 | 0.27 | 7,761 |
| 2025 | 0.237 | 7,592 |
| 2026 | 0.201 | 7,433 |
| 2030 | 0.029 | 6,877 |
| 2035 | -0.174 | 6,328 |
| 2040 | -0.355 | 5,905 |
| 2045 | -0.465 | 5,593 |
| 2050 | -0.557 | 5,392 |
| 2055 | -0.591 | 5,241 |
| 2060 | -0.55 | 5,092 |
| 2065 | -0.505 | 4,955 |
| 2070 | -0.476 | 4,836 |
| 2075 | -0.444 | 4,728 |
| 2080 | -0.454 | 4,623 |
| 2085 | -0.487 | 4,518 |
| 2090 | -0.499 | 4,408 |
| 2095 | -0.488 | 4,303 |
| 2100 | -0.452 | 4,202 |
Data from US Census International Database