Guam population rate of natural increase (RNI) 1950 to 2100
| Year | Rate of Natural Increase | Population |
|---|---|---|
| 2000 | 2.009 | 155,324 |
| 2005 | 1.551 | 159,580 |
| 2010 | 1.537 | 163,334 |
| 2015 | 1.417 | 166,404 |
| 2020 | 1.291 | 168,489 |
| 2024 | 1.201 | 169,532 |
| 2025 | 1.172 | 169,691 |
| 2026 | 1.146 | 169,805 |
| 2030 | 1.044 | 169,855 |
| 2035 | 0.918 | 168,908 |
| 2040 | 0.802 | 166,864 |
| 2045 | 0.681 | 163,733 |
| 2050 | 0.564 | 159,508 |
| 2055 | 0.461 | 154,717 |
| 2060 | 0.387 | 150,053 |
| 2065 | 0.331 | 145,751 |
| 2070 | 0.268 | 141,899 |
| 2075 | 0.177 | 138,385 |
| 2080 | 0.056 | 135,029 |
| 2085 | -0.073 | 131,726 |
| 2090 | -0.187 | 128,549 |
| 2095 | -0.271 | 125,689 |
| 2100 | -0.336 | 123,333 |
Data from US Census International Database