Change in the consumption of ozone-depleting substances in Tonga
Tonga: Change in the consumption of ozone-depleting substances was 0.56 in 2021. ◆ Volatile
Change in the consumption of ozone-depleting substances in Tonga, 1986–2021
Source: UN Environment Programme (2023) – processed by Our World in Data.
Analysis
The most recent figure for change in the consumption of ozone-depleting substances in Tonga is 0.56, measured in 2021.
Compared with earlier readings it is down 85.6% over ten years.
Over the whole period, change in the consumption of ozone-depleting substances in Tonga peaked at 4,633 in 1999 and was at its lowest, 0, in 1998.
That places Tonga 116th out of 162 countries with data for 2021, putting it in the middle of the range.
The series is highly variable year to year, so single readings are best treated with caution.
Change in the consumption of ozone-depleting substances in Tonga, year by year
| Year | Value | Change |
|---|---|---|
| 1986 | 100 | — |
| 1989 | 100 | +0.0% |
| 1991 | 22.22 | -77.8% |
| 1995 | 122.22 | +450.0% |
| 1996 | 77.78 | -36.4% |
| 1997 | 77.78 | +0.0% |
| 1998 | 0 | -100.0% |
| 1999 | 4,633 | — |
| 2000 | 27.78 | -99.4% |
| 2001 | 44.44 | +60.0% |
| 2002 | 55.56 | +25.0% |
| 2003 | 16.67 | -70.0% |
| 2004 | 5.56 | -66.6% |
| 2005 | 0 | -100.0% |
| 2006 | 0 | — |
| 2007 | 5.56 | — |
| 2008 | 11.11 | +99.8% |
| 2009 | 5.56 | -50.0% |
| 2010 | 5.56 | +0.0% |
| 2011 | 3.89 | -30.0% |
| 2012 | 2.78 | -28.5% |
| 2013 | 2.22 | -20.1% |
| 2014 | 1.11 | -50.0% |
| 2015 | 0 | -100.0% |
| 2016 | 0 | — |
| 2017 | 0.56 | — |
| 2018 | 0 | -100.0% |
| 2019 | 0 | — |
| 2020 | 0 | — |
| 2021 | 0.56 | — |
Tonga compared with similar countries
- Tonga's 0.56 is below the median for upper middle income countries, which is 1.45, 39% of the median. (57 countries reporting)
- Tonga's 0.56 is below the median for East Asia & Pacific, which is 2.5, 22% of the median. (27 countries reporting)
Biggest year-on-year movements
Years where Change in the consumption of ozone-depleting substances in Tonga changed far more than this series normally does. A large move can be a real event or a change in how the figure was measured — the source note below says who published it.
| Year | Change | From | To |
|---|---|---|---|
| 1995 | +450.0% | 22.22 | 122.22 |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1980s | 100 | 100 | 100 | 2 |
| 1990s | 822.22 | 0 | 4,633 | 6 |
| 2000s | 17.22 | 0 | 55.56 | 10 |
| 2010s | 1.61 | 0 | 5.56 | 10 |
| 2020s | 0.28 | 0 | 0.56 | 2 |
Countries ranked near Tonga
- 114 Guatemala 0.59 compare
- 115 Algeria 0.58 compare
- 117 Sierra Leone 0.53 compare
- 118 South Africa 0.48 compare
- 119 Saint Kitts and Nevis 0.36 compare
More environment data for Tonga
- Standard Deviation, annual growth rate 0 % change on previous year (2025)
- Standard Deviation 0.234 °C (2025)
- Temperature change 0.858 °C (2025)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), annual 3.06 % change on previous year (2024)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), per unit 0 Mt CO2e per US$ of GDP (2024)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), per capita 0 Mt CO2e per person (2024)
- Methane (CH4) emissions from Agriculture (Mt CO2e), annual growth rate 0.1689 % change on previous year (2024)
- Methane (CH4) emissions from Agriculture (Mt CO2e), per unit of GDP 0 Mt CO2e per US$ of GDP (2024)
- Methane (CH4) emissions from Agriculture (Mt CO2e), per capita 0 Mt CO2e per person (2024)
- Methane (CH4) emissions from Building (Energy) (Mt CO2e), annual 0 % change on previous year (2024)
Frequently asked questions
- What is change in the consumption of ozone-depleting substances in Tonga?
- Change in the consumption of ozone-depleting substances in Tonga was 0.56 in 2021, according to UN Environment Programme (2023) – processed by Our World in Data.
- What is the highest change in the consumption of ozone-depleting substances recorded in Tonga?
- The highest recorded value was 4,633 in 1999.
- What is the lowest change in the consumption of ozone-depleting substances recorded in Tonga?
- The lowest recorded value was 0 in 1998.
- How does Tonga rank for change in the consumption of ozone-depleting substances?
- Tonga ranks 116th out of 162 countries with data for 2021.
- Is change in the consumption of ozone-depleting substances rising or falling in Tonga?
- Over the last ten years it is down 85.6%. The long-run trend across the full record is volatile.
- Where does this Tonga data come from?
- The figures come from UN Environment Programme (2023) – processed by Our World in Data, published as part of Change in the consumption of ozone-depleting substances. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 30 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
Consumption of various controlled substances. These include Bromochloromethane (BCM), Carbon Tetrachloride (CTC), Chlorofluorocarbons (CFCs), Hydrobromofluorocarbons (HBFCs), Hydrochlorofluorocarbons (HCFCs), Hydrofluorocarbons (HFCs), Methyl Bromide (MB), Methyl Chloroform (TCA) and Other Fully Halogenated CFCs. This is measured as an index relative to emissions in the year 1986 (1986 = 100).