25_SDR holdings, per square kilometre in Tonga

Tonga: 25_SDR holdings, per square kilometre was 34,958 units per square kilometre in 2023. ◆ Volatile

Latest (2023)
34,958 units per square kilometre
Change on year
down 2.5%
World rank
39th
of 188 countries
All-time high
35,867 units per square kilometre
in 2022
All-time low
0 units per square kilometre
in 1999
Years of data
34
1990–2023

25_SDR holdings, per square kilometre in Tonga, 1990–2023

010.0k20.0k30.0k40.0k1990200620231990: 234.9 units per square kilometre1991: 355.3 units per square kilometre1992: 1.4k units per square kilometre1993: 776.5 units per square kilometre1994: 882.9 units per square kilometre1995: 1.1k units per square kilometre1996: 105.8 units per square kilometre1997: 150.5 units per square kilometre1998: 219.6 units per square kilometre1999: 0 units per square kilometre2000: 88.8 units per square kilometre2001: 197.7 units per square kilometre2002: 280 units per square kilometre2003: 375.4 units per square kilometre2004: 456.8 units per square kilometre2005: 529.4 units per square kilometre2006: 591.9 units per square kilometre2007: 751.5 units per square kilometre2008: 1.0k units per square kilometre2009: 1.0k units per square kilometre2010: 14.9k units per square kilometre2011: 15.6k units per square kilometre2012: 15.2k units per square kilometre2013: 14.8k units per square kilometre2014: 15.2k units per square kilometre2015: 13.6k units per square kilometre2016: 10.5k units per square kilometre2017: 10.1k units per square kilometre2018: 10.9k units per square kilometre2019: 10.4k units per square kilometre2020: 10.3k units per square kilometre2021: 10.7k units per square kilometre2022: 35.9k units per square kilometre2023: 35.0k units per square kilometre

Source: Statizoid (derived). Measured in units per square kilometre.

Analysis

In 2023, 25_sdr holdings, per square kilometre in Tonga stood at 34,958 units per square kilometre.

That represents a change of down 2.5% on the previous year and up 136.9% over ten years.

Over the whole period, 25_sdr holdings, per square kilometre in Tonga peaked at 35,867 units per square kilometre in 2022 and was at its lowest, 0 units per square kilometre, in 1999.

That places Tonga 39th out of 188 countries with data for 2023, putting it in the top quarter.

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

25_SDR holdings, per square kilometre in Tonga, year by year

Annual values for 25_SDR holdings, per square kilometre in Tonga, 1990 to 2023.
Year units per square kilometre Change
1990 234.87 units per square kilometre
1991 355.28 units per square kilometre +51.3%
1992 1,448 units per square kilometre +307.6%
1993 776.51 units per square kilometre -46.4%
1994 882.87 units per square kilometre +13.7%
1995 1,093 units per square kilometre +23.8%
1996 105.77 units per square kilometre -90.3%
1997 150.47 units per square kilometre +42.3%
1998 219.6 units per square kilometre +45.9%
1999 0 units per square kilometre -100.0%
2000 88.82 units per square kilometre
2001 197.72 units per square kilometre +122.6%
2002 280.01 units per square kilometre +41.6%
2003 375.36 units per square kilometre +34.1%
2004 456.84 units per square kilometre +21.7%
2005 529.42 units per square kilometre +15.9%
2006 591.89 units per square kilometre +11.8%
2007 751.51 units per square kilometre +27.0%
2008 1,009 units per square kilometre +34.2%
2009 1,008 units per square kilometre -0.1%
2010 14,914 units per square kilometre +1379.6%
2011 15,588 units per square kilometre +4.5%
2012 15,245 units per square kilometre -2.2%
2013 14,758 units per square kilometre -3.2%
2014 15,219 units per square kilometre +3.1%
2015 13,586 units per square kilometre -10.7%
2016 10,501 units per square kilometre -22.7%
2017 10,116 units per square kilometre -3.7%
2018 10,862 units per square kilometre +7.4%
2019 10,407 units per square kilometre -4.2%
2020 10,277 units per square kilometre -1.3%
2021 10,677 units per square kilometre +3.9%
2022 35,867 units per square kilometre +235.9%
2023 34,958 units per square kilometre -2.5%

Tonga compared with similar countries

  • Tonga's 34,958 units per square kilometre is above the median for upper middle income countries, which is 5,589 units per square kilometre, 6.3× the median. (57 countries reporting)
  • Tonga's 34,958 units per square kilometre is above the median for East Asia & Pacific, which is 10,758 units per square kilometre, 3.2× the median. (29 countries reporting)

Biggest year-on-year movements

Years where 25_SDR holdings, per square kilometre 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.

YearChange FromTo
2010 +1379.6% 1,008 units per square kilometre 14,914 units per square kilometre
1992 +307.6% 355.28 units per square kilometre 1,448 units per square kilometre
2022 +235.9% 10,677 units per square kilometre 35,867 units per square kilometre

Averages by decade

DecadeAverage LowestHighest Years
1990s 526.67 units per square kilometre 0 units per square kilometre 1,448 units per square kilometre 10
2000s 528.83 units per square kilometre 88.82 units per square kilometre 1,009 units per square kilometre 10
2010s 13,120 units per square kilometre 10,116 units per square kilometre 15,588 units per square kilometre 10
2020s 22,945 units per square kilometre 10,277 units per square kilometre 35,867 units per square kilometre 4

Countries ranked near Tonga

  1. 36 Portugal 40,945 units per square kilometre compare
  2. 37 Slovakia 37,025 units per square kilometre compare
  3. 38 Saint Vincent and the Grenadines 36,350 units per square kilometre compare
  4. 40 Spain 33,240 units per square kilometre compare
  5. 41 Hungary 27,279 units per square kilometre compare
  6. 42 Kiribati 24,449 units per square kilometre compare

See the full ranking of 188 places →

More reference data data for Tonga

All data for Tonga →

Frequently asked questions

What is 25_sdr holdings, per square kilometre in Tonga?
25_sdr holdings, per square kilometre in Tonga was 34,958 units per square kilometre in 2023, according to Statizoid (derived).
What is the highest 25_sdr holdings, per square kilometre recorded in Tonga?
The highest recorded value was 35,867 units per square kilometre in 2022.
What is the lowest 25_sdr holdings, per square kilometre recorded in Tonga?
The lowest recorded value was 0 units per square kilometre in 1999.
How does Tonga rank for 25_sdr holdings, per square kilometre?
Tonga ranks 39th out of 188 countries with data for 2023.
Is 25_sdr holdings, per square kilometre rising or falling in Tonga?
Over the last ten years it is up 136.9%. 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 25_SDR holdings, per square kilometre. Statizoid updates them automatically from the source API.

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25_SDR holdings, per square kilometre in Tonga. Statizoid, drawing on Statizoid (derived). Retrieved 21 September 2026, from https://reference.statizoid.com/stat/25-sdr-holdings-per-square-kilometre/tonga/

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How this figure is calculated

25_SDR holdings 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.

25_SDR holdings ÷ Land area (sq. km)

Computed from

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
25_SDR holdings, per square kilometre
Unit
units per square kilometre
Source
Statizoid (derived)
Licence
Derived by Statizoid from the sources named on the page
Coverage
188 places, 6,198 data points, 1990–2023
Last refreshed

25_SDR holdings 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.