IBRD only vs Sao Tome and Principe: Age dependency ratio
IBRD only
47.1%
in 2025
Sao Tome and Principe
70.6%
in 2025
IBRD only rank
40th
Sao Tome and Principe rank
38th
Age dependency ratio over time
- IBRD only
- Sao Tome and Principe
How they compare
Sao Tome and Principe currently reports 70.6% against 47.1% in IBRD only, a difference of 23.5%.
That makes Sao Tome and Principe's figure about 1.5 times IBRD only's.
The two have swapped places 1 time across 66 shared years of data; in 1960 it was IBRD only ahead.
IBRD only ranks 40th and Sao Tome and Principe ranks 38th of 47 groups.
Sao Tome and Principe has averaged higher in every one of the 7 decades both report.
Head to head by decade
| Decade | IBRD only | Sao Tome and Principe | Difference | Ahead |
|---|---|---|---|---|
| 1960s | 80.0% | 80.7% | 0.7% | Sao Tome and Principe |
| 1970s | 77.8% | 100.7% | 22.9% | Sao Tome and Principe |
| 1980s | 68.0% | 96.5% | 28.6% | Sao Tome and Principe |
| 1990s | 61.3% | 95.7% | 34.4% | Sao Tome and Principe |
| 2000s | 52.3% | 86.0% | 33.7% | Sao Tome and Principe |
| 2010s | 47.9% | 82.8% | 34.8% | Sao Tome and Principe |
| 2020s | 47.8% | 73.9% | 26.1% | Sao Tome and Principe |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher age dependency ratio, IBRD only or Sao Tome and Principe?
- Sao Tome and Principe, at 70.6% against 47.1% in IBRD only as of 2025.
- What is the difference in age dependency ratio between IBRD only and Sao Tome and Principe?
- 23.5%, with Sao Tome and Principe ahead.
- How many years of comparable data are there for IBRD only and Sao Tome and Principe?
- 66 years are reported by both, from 1960 to 2025.
- How do IBRD only and Sao Tome and Principe rank globally for age dependency ratio?
- IBRD only ranks 40th and Sao Tome and Principe ranks 38th of 47 groups.
- Where does this data come from?
- World Population Prospects, United Nations (UN), publisher: UN Population Division, published as Age dependency ratio (% of working-age population). Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Age dependency ratio is the ratio of dependents--people younger than 15 or older than 64--to the working-age population--those ages 15-64. Data are shown as the proportion of dependents per 100 working-age population.