How have things changed?, per square kilometre in Tonga
Tonga: How have things changed?, per square kilometre was 1.72 metric tons per square kilometre in 2023. ◆ Volatile
Latest (2023)
1.72 metric tons per square kilometre
Change on year
down 12.9%
World rank
81st
of 215 countries
All-time high
7.4 metric tons per square kilometre
in 2002
All-time low
0.5556 metric tons per square kilometre
in 1970
Years of data
59
1965–2023
How have things changed?, per square kilometre in Tonga, 1965–2023
Source: Statizoid (derived). Measured in metric tons per square kilometre.
Analysis
The most recent figure for how have things changed?, per square kilometre in Tonga is 1.72 metric tons per square kilometre, measured in 2023.
Compared with earlier readings it is down 12.9% on the previous year and down 38.8% over ten years.
Over the whole period, how have things changed?, per square kilometre in Tonga peaked at 7.4 metric tons per square kilometre in 2002 and was at its lowest, 0.5556 metric tons per square kilometre, in 1970.
That places Tonga 81st out of 215 countries with data for 2023, putting it in the middle of the range.
The series is highly variable year to year, so single readings are best treated with caution.
How have things changed?, per square kilometre in Tonga, year by year
| Year | metric tons per square kilometre | Change |
|---|---|---|
| 1965 | 0.6944 metric tons per square kilometre | — |
| 1966 | 0.6944 metric tons per square kilometre | +0.0% |
| 1967 | 0.6944 metric tons per square kilometre | +0.0% |
| 1968 | 0.6944 metric tons per square kilometre | +0.0% |
| 1969 | 0.6944 metric tons per square kilometre | +0.0% |
| 1970 | 0.5556 metric tons per square kilometre | -20.0% |
| 1971 | 0.6944 metric tons per square kilometre | +25.0% |
| 1972 | 0.6944 metric tons per square kilometre | +0.0% |
| 1973 | 0.8375 metric tons per square kilometre | +20.6% |
| 1974 | 1.01 metric tons per square kilometre | +21.1% |
| 1975 | 1.25 metric tons per square kilometre | +23.4% |
| 1976 | 1.42 metric tons per square kilometre | +13.5% |
| 1977 | 1.67 metric tons per square kilometre | +17.4% |
| 1978 | 1.7 metric tons per square kilometre | +1.7% |
| 1979 | 2.78 metric tons per square kilometre | +63.8% |
| 1980 | 2.77 metric tons per square kilometre | -0.3% |
| 1981 | 2.91 metric tons per square kilometre | +5.0% |
| 1982 | 2.96 metric tons per square kilometre | +2.0% |
| 1983 | 3.11 metric tons per square kilometre | +4.8% |
| 1984 | 3.31 metric tons per square kilometre | +6.6% |
| 1985 | 3.56 metric tons per square kilometre | +7.4% |
| 1986 | 3.91 metric tons per square kilometre | +9.9% |
| 1987 | 3.88 metric tons per square kilometre | -0.9% |
| 1988 | 3.79 metric tons per square kilometre | -2.1% |
| 1989 | 3.75 metric tons per square kilometre | -1.2% |
| 1990 | 2.28 metric tons per square kilometre | -39.1% |
| 1991 | 2.69 metric tons per square kilometre | +17.7% |
| 1992 | 3.11 metric tons per square kilometre | +15.6% |
| 1993 | 3.3 metric tons per square kilometre | +6.2% |
| 1994 | 3.47 metric tons per square kilometre | +5.2% |
| 1995 | 3.79 metric tons per square kilometre | +9.1% |
| 1996 | 4.1 metric tons per square kilometre | +8.4% |
| 1997 | 4.06 metric tons per square kilometre | -1.0% |
| 1998 | 5.79 metric tons per square kilometre | +42.7% |
| 1999 | 6.53 metric tons per square kilometre | +12.6% |
| 2000 | 5.98 metric tons per square kilometre | -8.3% |
| 2001 | 6.97 metric tons per square kilometre | +16.5% |
| 2002 | 7.4 metric tons per square kilometre | +6.2% |
| 2003 | 6.7 metric tons per square kilometre | -9.4% |
| 2004 | 4.7 metric tons per square kilometre | -29.9% |
| 2005 | 3.68 metric tons per square kilometre | -21.8% |
| 2006 | 4.01 metric tons per square kilometre | +9.1% |
| 2007 | 3.8 metric tons per square kilometre | -5.4% |
| 2008 | 3.61 metric tons per square kilometre | -5.0% |
| 2009 | 3.13 metric tons per square kilometre | -13.1% |
| 2010 | 3.3 metric tons per square kilometre | +5.4% |
| 2011 | 3.38 metric tons per square kilometre | +2.3% |
| 2012 | 3.64 metric tons per square kilometre | +7.9% |
| 2013 | 2.82 metric tons per square kilometre | -22.7% |
| 2014 | 2.79 metric tons per square kilometre | -1.0% |
| 2015 | 2.58 metric tons per square kilometre | -7.4% |
| 2016 | 2.25 metric tons per square kilometre | -12.8% |
| 2017 | 2.04 metric tons per square kilometre | -9.4% |
| 2018 | 1.84 metric tons per square kilometre | -10.1% |
| 2019 | 1.81 metric tons per square kilometre | -1.7% |
| 2020 | 1.67 metric tons per square kilometre | -7.5% |
| 2021 | 1.69 metric tons per square kilometre | +1.2% |
| 2022 | 1.98 metric tons per square kilometre | +17.2% |
| 2023 | 1.72 metric tons per square kilometre | -12.9% |
Tonga compared with similar countries
- Tonga's 1.72 metric tons per square kilometre is above the median for upper middle income countries, which is 0.8393 metric tons per square kilometre, 2.1× the median. (58 countries reporting)
- Tonga's 1.72 metric tons per square kilometre is below the median for East Asia & Pacific, which is 4.99 metric tons per square kilometre, 35% of the median. (37 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1960s | 0.6944 metric tons per square kilometre | 0.6944 metric tons per square kilometre | 0.6944 metric tons per square kilometre | 5 |
| 1970s | 1.26 metric tons per square kilometre | 0.5556 metric tons per square kilometre | 2.78 metric tons per square kilometre | 10 |
| 1980s | 3.39 metric tons per square kilometre | 2.77 metric tons per square kilometre | 3.91 metric tons per square kilometre | 10 |
| 1990s | 3.91 metric tons per square kilometre | 2.28 metric tons per square kilometre | 6.53 metric tons per square kilometre | 10 |
| 2000s | 5 metric tons per square kilometre | 3.13 metric tons per square kilometre | 7.4 metric tons per square kilometre | 10 |
| 2010s | 2.64 metric tons per square kilometre | 1.81 metric tons per square kilometre | 3.64 metric tons per square kilometre | 10 |
| 2020s | 1.77 metric tons per square kilometre | 1.67 metric tons per square kilometre | 1.98 metric tons per square kilometre | 4 |
Countries ranked near Tonga
- 78 Fiji 1.79 metric tons per square kilometre compare
- 79 Palau 1.77 metric tons per square kilometre compare
- 80 Solomon Islands 1.74 metric tons per square kilometre compare
- 82 Guinea 1.72 metric tons per square kilometre compare
- 83 Lithuania 1.7 metric tons per square kilometre compare
- 84 Rwanda 1.67 metric tons per square kilometre compare
More reference data data for Tonga
- Emission Totals - Indirect emissions (N2O) - Manure applied to Soils 0.0105 (2050)
- Emission Totals - Indirect emissions (N2O) - Manure left on Pasture 0.0092 (2050)
- Emission Totals - Indirect emissions (N2O) - IPCC Agriculture 0.0197 (2050)
- Emission Totals - Indirect emissions (N2O) - Agricultural Soils 0.0197 (2050)
- Emission Totals - Emissions (N2O) - Manure applied to Soils 0.0353 (2050)
- Emission Totals - Emissions (N2O) - Manure Management 0.0269 (2050)
- Emission Totals - Emissions (N2O) - Manure left on Pasture 0.0446 (2050)
- Emission Totals - Emissions (N2O) - IPCC Agriculture 0.1068 (2050)
- Emission Totals - Emissions (N2O) - Agricultural Soils 0.0799 (2050)
- Emission Totals - Emissions (CO2eq) from N2O (AR5) - Manure applied 9.35 (2050)
Frequently asked questions
- What is how have things changed?, per square kilometre in Tonga?
- How have things changed?, per square kilometre in Tonga was 1.72 metric tons per square kilometre in 2023, according to Statizoid (derived).
- What is the highest how have things changed?, per square kilometre recorded in Tonga?
- The highest recorded value was 7.4 metric tons per square kilometre in 2002.
- What is the lowest how have things changed?, per square kilometre recorded in Tonga?
- The lowest recorded value was 0.5556 metric tons per square kilometre in 1970.
- How does Tonga rank for how have things changed?, per square kilometre?
- Tonga ranks 81st out of 215 countries with data for 2023.
- Is how have things changed?, per square kilometre rising or falling in Tonga?
- Over the last ten years it is down 38.8%. The long-run trend across the full record is volatile.
- Where does this Tonga data come from?
- The figures come from Statizoid (derived), published as part of How have things changed?, per square kilometre. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 59 observations, free to reuse under Derived by Statizoid from the sources named on the page.
How this figure is calculated
How have things changed? divided by Land area (sq. km), matched on country and year. Neither publisher issues this ratio as a series; it is computed here from both.
How have things changed? ÷ Land area (sq. km)
Computed from
- How have things changed? Food and Agriculture Organization of the United Nations (FAO), via World Bank (2026) – processed by Our World in Data
- Land area FAOSTAT, Food and Agriculture Organization of the United Nations (FAO)
Statizoid computes this series; the underlying measurements belong to the publishers named above. The arithmetic is applied to every country and year where both inputs report, and nothing is estimated unless the page says so.
About this data
How have things changed? divided by Land area (sq. km), matched on country and year. Neither publisher issues this ratio as a series; it is computed here from both.