Total Reserves, per square kilometre in Tonga

Tonga: Total Reserves, per square kilometre was 0.2988 units per square kilometre in 2018. ◆ Volatile

Latest (2018)
0.2988 units per square kilometre
Change on year
up 8.4%
World rank
42nd
of 164 countries
All-time high
0.2988 units per square kilometre
in 2018
All-time low
0.033 units per square kilometre
in 2001
Years of data
19
2000–2018

Total Reserves, per square kilometre in Tonga, 2000–2018

00.10.20.32000200920182000: 0.034 units per square kilometre2001: 0.033 units per square kilometre2002: 0.035 units per square kilometre2003: 0.055 units per square kilometre2004: 0.077 units per square kilometre2005: 0.065 units per square kilometre2006: 0.067 units per square kilometre2007: 0.091 units per square kilometre2008: 0.097 units per square kilometre2009: 0.133 units per square kilometre2010: 0.145 units per square kilometre2011: 0.199 units per square kilometre2012: 0.212 units per square kilometre2013: 0.216 units per square kilometre2014: 0.221 units per square kilometre2015: 0.217 units per square kilometre2016: 0.245 units per square kilometre2017: 0.276 units per square kilometre2018: 0.299 units per square kilometre

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

Analysis

Tonga recorded 0.2988 units per square kilometre for total reserves, per square kilometre in 2018. That is the highest value across all 19 years on record.

That represents a change of up 8.4% on the previous year and up 208.4% over ten years.

Over the whole period, total reserves, per square kilometre in Tonga peaked at 0.2988 units per square kilometre in 2018 and was at its lowest, 0.033 units per square kilometre, in 2001.

That places Tonga 42nd out of 164 countries with data for 2018, putting it in the middle of the range.

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

Total Reserves, per square kilometre in Tonga, year by year

Annual values for Total Reserves, per square kilometre in Tonga, 2000 to 2018.
Year units per square kilometre Change
2000 0.0342 units per square kilometre
2001 0.033 units per square kilometre -3.6%
2002 0.0349 units per square kilometre +5.7%
2003 0.0552 units per square kilometre +58.3%
2004 0.0768 units per square kilometre +39.0%
2005 0.0651 units per square kilometre -15.2%
2006 0.0666 units per square kilometre +2.4%
2007 0.0906 units per square kilometre +36.0%
2008 0.0969 units per square kilometre +6.9%
2009 0.1329 units per square kilometre +37.2%
2010 0.1452 units per square kilometre +9.2%
2011 0.199 units per square kilometre +37.1%
2012 0.2117 units per square kilometre +6.4%
2013 0.216 units per square kilometre +2.0%
2014 0.2205 units per square kilometre +2.1%
2015 0.2168 units per square kilometre -1.7%
2016 0.2451 units per square kilometre +13.1%
2017 0.2757 units per square kilometre +12.5%
2018 0.2988 units per square kilometre +8.4%

Biggest year-on-year movements

Years where Total Reserves, 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
2003 +58.3% 0.0349 units per square kilometre 0.0552 units per square kilometre

Averages by decade

DecadeAverage LowestHighest Years
2000s 0.0686 units per square kilometre 0.033 units per square kilometre 0.1329 units per square kilometre 10
2010s 0.2254 units per square kilometre 0.1452 units per square kilometre 0.2988 units per square kilometre 9

Countries ranked near Tonga

  1. 39 Dominican Republic 0.3208 units per square kilometre compare
  2. 40 Germany 0.3119 units per square kilometre compare
  3. 41 Italy 0.3096 units per square kilometre compare
  4. 43 Micronesia (country) 0.2908 units per square kilometre compare
  5. 44 Costa Rica 0.259 units per square kilometre compare
  6. 45 Dominica 0.2551 units per square kilometre compare

See the full ranking of 174 places →

More reference data data for Tonga

All data for Tonga →

Frequently asked questions

What is total reserves, per square kilometre in Tonga?
Total reserves, per square kilometre in Tonga was 0.2988 units per square kilometre in 2018, according to Statizoid (derived).
What is the highest total reserves, per square kilometre recorded in Tonga?
The highest recorded value was 0.2988 units per square kilometre in 2018.
What is the lowest total reserves, per square kilometre recorded in Tonga?
The lowest recorded value was 0.033 units per square kilometre in 2001.
How does Tonga rank for total reserves, per square kilometre?
Tonga ranks 42nd out of 164 countries with data for 2018.
Is total reserves, per square kilometre rising or falling in Tonga?
Over the last ten years it is up 208.4%. 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 Total Reserves, per square kilometre. Statizoid updates them automatically from the source API.

Download this data

CSV · JSON — 19 observations, free to reuse under Derived by Statizoid from the sources named on the page.

Share, cite or embed this page

Cite this page

Total Reserves, per square kilometre in Tonga. Statizoid, drawing on Statizoid (derived). Retrieved 22 September 2026, from https://reference.statizoid.com/stat/total-reserves-per-square-kilometre/tonga/

Embed or link this data

Paste this into a page to link back to these figures. The data itself is free to reuse under Derived by Statizoid from the sources named on the page; please keep the attribution.

<a href="https://reference.statizoid.com/stat/total-reserves-per-square-kilometre/tonga/">Total Reserves, per square kilometre in Tonga</a> — Statizoid

How this figure is calculated

Total Reserves 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.

Total Reserves ÷ 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
Total Reserves, per square kilometre
Unit
units per square kilometre
Source
Statizoid (derived)
Licence
Derived by Statizoid from the sources named on the page
Coverage
174 places, 4,193 data points, 1990–2023
Last refreshed

Total Reserves 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.