Chlorophyll-a deviations, remote sensing in Tonga
Tonga: Chlorophyll-a deviations, remote sensing was 0.6% in 2022. ◆ Volatile
Chlorophyll-a deviations, remote sensing in Tonga, 2005–2022
Source: United Nations Statistics Division, SDG Global Database. Measured in %.
Analysis
In 2022, chlorophyll-a deviations, remote sensing in Tonga stood at 0.6%.
The figure is down 86.2% on the previous year and up 197.1% over ten years.
Over the whole period, chlorophyll-a deviations, remote sensing in Tonga peaked at 5.1% in 2017 and was at its lowest, 0.2%, in 2012.
That places Tonga 133rd out of 213 countries with data for 2022, putting it in the middle of the range.
The series is highly variable year to year, so single readings are best treated with caution.
Chlorophyll-a deviations, remote sensing in Tonga, year by year
| Year | % | Change |
|---|---|---|
| 2005 | 2.5% | — |
| 2006 | 1.4% | -45.0% |
| 2007 | 4.5% | +221.5% |
| 2008 | 1.8% | -58.7% |
| 2009 | 0.3% | -84.9% |
| 2010 | 1.0% | +254.3% |
| 2011 | 1.0% | +1.2% |
| 2012 | 0.2% | -81.1% |
| 2013 | 1.0% | +408.1% |
| 2014 | 0.8% | -14.8% |
| 2015 | 3.9% | +378.3% |
| 2016 | 3.5% | -10.8% |
| 2017 | 5.1% | +47.2% |
| 2018 | 3.8% | -26.8% |
| 2019 | 2.4% | -35.5% |
| 2020 | 2.7% | +11.3% |
| 2021 | 4.1% | +51.3% |
| 2022 | 0.6% | -86.2% |
Tonga compared with similar countries
- Tonga's 0.6% is below the median for upper middle income countries, which is 1.7%, 33% of the median. (45 countries reporting)
- Tonga's 0.6% is above the median for East Asia & Pacific, which is 0.5%, 1.0× the median. (30 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2000s | 2.1% | 0.3% | 4.5% | 5 |
| 2010s | 2.3% | 0.2% | 5.1% | 10 |
| 2020s | 2.4% | 0.6% | 4.1% | 3 |
Countries ranked near Tonga
More development goals data for Tonga
- Red List Index 0.7501 index (2025)
- Number of refugees per 100,000 population, by country of origin 58.77 per 100,000 people (2025)
- Manufacturing value added per capita 286.2 constant US$ (2025)
- Number of transboundary breeds 18 (2025)
- Number of transboundary breeds (not extinct) 18 (2025)
- Number of transboundary breeds with unknown risk status 18 (2025)
- Number of local breeds with unknown risk status 5 (2025)
- Number of local breeds (not extinct) 5 (2025)
- Number of local breeds kept in the country 5 (2025)
- Infant deaths 19 (2024)
Frequently asked questions
- What is chlorophyll-a deviations, remote sensing in Tonga?
- Chlorophyll-a deviations, remote sensing in Tonga was 0.6% in 2022, according to United Nations Statistics Division, SDG Global Database.
- What is the highest chlorophyll-a deviations, remote sensing recorded in Tonga?
- The highest recorded value was 5.1% in 2017.
- What is the lowest chlorophyll-a deviations, remote sensing recorded in Tonga?
- The lowest recorded value was 0.2% in 2012.
- How does Tonga rank for chlorophyll-a deviations, remote sensing?
- Tonga ranks 133rd out of 213 countries with data for 2022.
- Is chlorophyll-a deviations, remote sensing rising or falling in Tonga?
- Over the last ten years it is up 197.1%. The long-run trend across the full record is volatile.
- Where does this Tonga data come from?
- The figures come from United Nations Statistics Division, SDG Global Database, published as part of Chlorophyll-a deviations, remote sensing (%). Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 18 observations, free to reuse under UN SDG Global Database (open, attribution requested).