Getting electricity: System average interruption … frequency in Tonga
Tonga: Getting electricity: System average interruption frequency index was 9.2 DB16-20 methodology in 2019. ▼ Falling
Getting electricity: System average interruption frequency index in Tonga, 2014–2019
Source: World Bank. Measured in DB16-20 methodology.
Analysis
The most recent figure for getting electricity: system average interruption frequency index in Tonga is 9.2 DB16-20 methodology, measured in 2019. That is the lowest value across all 6 years on record.
Compared with earlier readings it is down 37.4% over ten years.
Tonga ranks 22nd of 126 countries on this measure, in the top quarter.
Getting electricity: System average interruption frequency index in Tonga, year by year
| Year | DB16-20 methodology | Change |
|---|---|---|
| 2014 | 14.7 DB16-20 methodology | — |
| 2015 | 12.93 DB16-20 methodology | -12.0% |
| 2016 | 14.73 DB16-20 methodology | +13.9% |
| 2017 | 14.73 DB16-20 methodology | +0.0% |
| 2018 | 9.2 DB16-20 methodology | -37.5% |
| 2019 | 9.2 DB16-20 methodology | +0.0% |
Tonga compared with similar countries
- Tonga's 9.2 DB16-20 methodology is above the median for upper middle income countries, which is 3.26 DB16-20 methodology, 2.8× the median. (44 countries reporting)
- Tonga's 9.2 DB16-20 methodology is above the median for East Asia & Pacific, which is 1.85 DB16-20 methodology, 5.0× the median. (22 countries reporting)
Countries ranked near Tonga
More private sector data for Tonga
- Merchandise trade 39.5% (2025)
- Food imports 27.5% (2023)
- Manufactures imports 53.8% (2023)
- Merchandise imports 255.00 million current US$ (2025)
- Food exports 30.9% (2023)
- Manufactures exports 67.5% (2023)
- Merchandise exports 13.00 million current US$ (2025)
- Merchandise exports (current US$), per capita 125.31 current US$ per person (2025)
- Merchandise exports (current US$), per unit of GDP 0.0191 current US$ per US$ of GDP (2025)
- Merchandise exports (current US$), annual growth rate 44.44 % change on previous year (2025)
Frequently asked questions
- What is getting electricity: system average interruption frequency index in Tonga?
- Getting electricity: system average interruption frequency index in Tonga was 9.2 DB16-20 methodology in 2019, according to the World Bank.
- What is the highest getting electricity: system average interruption frequency index recorded in Tonga?
- The highest recorded value was 14.73 DB16-20 methodology in 2016.
- What is the lowest getting electricity: system average interruption frequency index recorded in Tonga?
- The lowest recorded value was 9.2 DB16-20 methodology in 2018.
- How does Tonga rank for getting electricity: system average interruption frequency index?
- Tonga ranks 22nd out of 126 countries with data for 2019.
- Is getting electricity: system average interruption frequency index rising or falling in Tonga?
- Over the last ten years it is down 37.4%. The long-run trend across the full record is falling.
- Where does this Tonga data come from?
- The figures come from the World Bank, published as part of Getting electricity: System average interruption frequency index (SAIFI) (DB16-20 methodology). Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 6 observations, free to reuse under CC BY 4.0 (World Bank Open Data).
About this data
The system average interruption frequency index (SAIFI) is the average number of service interruptions experienced by a customer in a year. The index is computed based on the methodology in the DB16-20 studies.