Is horses — manure left on pasture that leaches (n content), per unit of rising or falling in Tonga?

Over the last ten years it is down 17.4%. The long-run trend across the full record is volatile.

Horses: Manure left on pasture that leaches (N) … unit GDP leaches in Tonga

Name: Horses: Manure left on pasture that leaches (N) … unit GDP leaches in Tonga
Creator: Statizoid (derived)
License: Derived by Statizoid from the sources named on the page

Tonga: Horses: Manure left on pasture that leaches (N) … unit GDP leaches was 0.0002 kg per US$ of GDP in 2023. ◆ Volatile

Latest (2023)

0.0002 kg per US$ of GDP

Change on year

down 5.6%

World rank

14th

of 143 countries

All-time high

0.0022 kg per US$ of GDP

in 1976

All-time low

0.0002 kg per US$ of GDP

in 2023

Years of data

1975–2023

Horses — Manure left on pasture that leaches (N content), per unit of in Tonga, 1975–2023

Source: Statizoid (derived). Measured in kg per US$ of GDP.

Analysis

The most recent figure for horses — manure left on pasture that leaches (n content), per unit of in Tonga is 0.0002 kg per US$ of GDP, measured in 2023. That is the lowest value across all 49 years on record.

That represents a change of down 5.6% on the previous year and down 17.4% over ten years.

Over the whole period, horses — manure left on pasture that leaches (n content), per unit of in Tonga peaked at 0.0022 kg per US$ of GDP in 1976 and was at its lowest, 0.0002 kg per US$ of GDP, in 2023.

That places Tonga 14th out of 143 countries with data for 2023, putting it in the top 10%.

The series is highly variable year to year, so single readings are best treated with caution.

Horses: Manure left on pasture that leaches (N) … unit GDP leaches in Tonga, year by year

Annual values for Horses — Manure left on pasture that leaches (N content), per unit of GDP in Tonga, 1975 to 2023.
Year	kg per US$ of GDP	Change
1975	0.002 kg per US$ of GDP	—
1976	0.0022 kg per US$ of GDP	+15.0%
1977	0.002 kg per US$ of GDP	-12.8%
1978	0.0019 kg per US$ of GDP	-0.7%
1979	0.0019 kg per US$ of GDP	-3.0%
1980	0.0016 kg per US$ of GDP	-14.5%
1981	0.0016 kg per US$ of GDP	-2.8%
1982	0.0014 kg per US$ of GDP	-7.9%
1983	0.0011 kg per US$ of GDP	-23.0%
1984	0.0011 kg per US$ of GDP	-4.9%
1985	0.0014 kg per US$ of GDP	+29.8%
1986	0.0013 kg per US$ of GDP	-8.2%
1987	0.0011 kg per US$ of GDP	-16.5%
1988	0.0008 kg per US$ of GDP	-23.4%
1989	0.0008 kg per US$ of GDP	+4.7%
1990	0.0004 kg per US$ of GDP	-51.1%
1991	0.0004 kg per US$ of GDP	-14.1%
1992	0.0007 kg per US$ of GDP	+86.5%
1993	0.0006 kg per US$ of GDP	-2.7%
1994	0.0005 kg per US$ of GDP	-29.3%
1995	0.0004 kg per US$ of GDP	-6.2%
1996	0.0004 kg per US$ of GDP	-6.0%
1997	0.0004 kg per US$ of GDP	+3.3%
1998	0.0005 kg per US$ of GDP	+12.3%
1999	0.0004 kg per US$ of GDP	-3.9%
2000	0.0004 kg per US$ of GDP	-2.8%
2001	0.0005 kg per US$ of GDP	+13.1%
2002	0.0005 kg per US$ of GDP	-0.9%
2003	0.0004 kg per US$ of GDP	-9.6%
2004	0.0004 kg per US$ of GDP	-12.3%
2005	0.0003 kg per US$ of GDP	-11.9%
2006	0.0003 kg per US$ of GDP	-10.4%
2007	0.0003 kg per US$ of GDP	-1.2%
2008	0.0003 kg per US$ of GDP	-13.3%
2009	0.0003 kg per US$ of GDP	+10.3%
2010	0.0002 kg per US$ of GDP	-14.8%
2011	0.0002 kg per US$ of GDP	-11.4%
2012	0.0002 kg per US$ of GDP	-12.1%
2013	0.0002 kg per US$ of GDP	-0.3%
2014	0.0002 kg per US$ of GDP	+2.4%
2015	0.0002 kg per US$ of GDP	+3.8%
2016	0.0002 kg per US$ of GDP	+6.5%
2017	0.0002 kg per US$ of GDP	-6.8%
2018	0.0002 kg per US$ of GDP	-6.6%
2019	0.0002 kg per US$ of GDP	-2.1%
2020	0.0002 kg per US$ of GDP	+0.2%
2021	0.0002 kg per US$ of GDP	-3.3%
2022	0.0002 kg per US$ of GDP	-6.4%
2023	0.0002 kg per US$ of GDP	-5.6%

Tonga compared with similar countries

Tonga's 0.0002 kg per US$ of GDP is above the median for upper middle income countries, which is 0 kg per US$ of GDP, 17.9× the median. (45 countries reporting)
Tonga's 0.0002 kg per US$ of GDP is above the median for East Asia & Pacific, which is 0 kg per US$ of GDP, 46.7× the median. (19 countries reporting)

Biggest year-on-year movements

Years where Horses: Manure left on pasture that leaches (N) … unit GDP leaches 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
1992	+86.5%	0.0004 kg per US$ of GDP	0.0007 kg per US$ of GDP

Averages by decade

Decade	Average	Lowest	Highest	Years
1970s	0.002 kg per US$ of GDP	0.0019 kg per US$ of GDP	0.0022 kg per US$ of GDP	5
1980s	0.0012 kg per US$ of GDP	0.0008 kg per US$ of GDP	0.0016 kg per US$ of GDP	10
1990s	0.0005 kg per US$ of GDP	0.0004 kg per US$ of GDP	0.0007 kg per US$ of GDP	10
2000s	0.0004 kg per US$ of GDP	0.0003 kg per US$ of GDP	0.0005 kg per US$ of GDP	10
2010s	0.0002 kg per US$ of GDP	0.0002 kg per US$ of GDP	0.0002 kg per US$ of GDP	10
2020s	0.0002 kg per US$ of GDP	0.0002 kg per US$ of GDP	0.0002 kg per US$ of GDP	4

Countries ranked near Tonga

11 Niger 0.0002 kg per US$ of GDP compare
12 Nicaragua 0.0002 kg per US$ of GDP compare
13 Kazakhstan 0.0002 kg per US$ of GDP compare
15 Gambia 0.0001 kg per US$ of GDP compare
16 Cuba 0.0001 kg per US$ of GDP compare
17 Tajikistan 0.0001 kg per US$ of GDP compare

See the full ranking of 145 places →

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)

All data for Tonga →

Frequently asked questions

What is horses — manure left on pasture that leaches (n content), per unit of in Tonga?: Horses — manure left on pasture that leaches (n content), per unit of in Tonga was 0.0002 kg per US$ of GDP in 2023, according to Statizoid (derived).
What is the highest horses — manure left on pasture that leaches (n content), per unit of recorded in Tonga?: The highest recorded value was 0.0022 kg per US$ of GDP in 1976.
What is the lowest horses — manure left on pasture that leaches (n content), per unit of recorded in Tonga?: The lowest recorded value was 0.0002 kg per US$ of GDP in 2023.
How does Tonga rank for horses — manure left on pasture that leaches (n content), per unit of?: Tonga ranks 14th out of 143 countries with data for 2023.
Is horses — manure left on pasture that leaches (n content), per unit of rising or falling in Tonga?: Over the last ten years it is down 17.4%. 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 Horses — Manure left on pasture that leaches (N content), per unit of GDP. Statizoid updates them automatically from the source API.

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Horses — Manure left on pasture that leaches (N content), per unit of in Tonga. Statizoid, drawing on Statizoid (derived). Retrieved 11 October 2026, from https://environment.statizoid.com/stat/horses-manure-left-on-pasture-that-leaches-n-content-per-unit-of-gdp/tonga/

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How this figure is calculated

Horses — Manure left on pasture that leaches (N content) divided by GDP (current US$), matched on country and year. Neither publisher issues this ratio as a series; it is computed here from both.

Horses — Manure left on pasture that leaches (N content) ÷ GDP (current US$)

Computed from

Horses — Manure left on pasture that leaches Food and Agriculture Organization of the United Nations
GDP Country official statistics, National Statistical Organizations and/or Central Banks

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

Indicator: Horses — Manure left on pasture that leaches (N content), per unit of GDP
Unit: kg per US$ of GDP
Source: Statizoid (derived)
Licence: Derived by Statizoid from the sources named on the page
Coverage: 145 places, 7,594 data points, 1961–2023
Last refreshed: 07 October 2026

Horses — Manure left on pasture that leaches (N content) divided by GDP (current US$), matched on country and year. Neither publisher issues this ratio as a series; it is computed here from both.