Net official flows from UN agencies, UNDP (current US$), per square in Tonga

Tonga: Net official flows from UN agencies, UNDP (current US$), per square was 106.79 current US$ per square kilometre in 2018. ◆ Volatile

Latest (2018)
106.79 current US$ per square kilometre
Change on year
up 105.9%
World rank
27th
of 175 countries
All-time high
1,111 current US$ per square kilometre
in 1982
All-time low
13.89 current US$ per square kilometre
in 1998
Years of data
42
1969–2018

Net official flows from UN agencies, UNDP (current US$), per square in Tonga, 1969–2018

02505007501.0k1969199320181969: 27.8 current US$ per square kilometre1970: 27.8 current US$ per square kilometre1971: 41.7 current US$ per square kilometre1972: 55.6 current US$ per square kilometre1973: 41.7 current US$ per square kilometre1974: 111.1 current US$ per square kilometre1975: 375 current US$ per square kilometre1976: 569.4 current US$ per square kilometre1977: 375 current US$ per square kilometre1978: 236.1 current US$ per square kilometre1979: 569.4 current US$ per square kilometre1980: 777.8 current US$ per square kilometre1981: 1.1k current US$ per square kilometre1982: 1.1k current US$ per square kilometre1983: 902.8 current US$ per square kilometre1984: 597.2 current US$ per square kilometre1985: 444.4 current US$ per square kilometre1986: 458.3 current US$ per square kilometre1987: 722.2 current US$ per square kilometre1988: 611.1 current US$ per square kilometre1989: 319.4 current US$ per square kilometre1990: 569.4 current US$ per square kilometre1991: 611.1 current US$ per square kilometre1992: 319.4 current US$ per square kilometre1993: 597.2 current US$ per square kilometre1994: 291.7 current US$ per square kilometre1995: 208.3 current US$ per square kilometre1996: 208.3 current US$ per square kilometre1997: 55.6 current US$ per square kilometre1998: 13.9 current US$ per square kilometre1999: 69.4 current US$ per square kilometre2000: 166.7 current US$ per square kilometre2001: 13.9 current US$ per square kilometre2002: 166.7 current US$ per square kilometre2003: 27.8 current US$ per square kilometre2011: 263.9 current US$ per square kilometre2012: 173.3 current US$ per square kilometre2013: 30.4 current US$ per square kilometre2014: 247 current US$ per square kilometre2015: 87.1 current US$ per square kilometre2017: 51.9 current US$ per square kilometre2018: 106.8 current US$ per square kilometre

Source: Statizoid (derived). Measured in current US$ per square kilometre.

Analysis

In 2018, net official flows from un agencies, undp (current us$), per square in Tonga stood at 106.79 current US$ per square kilometre.

That represents a change of up 105.9% on the previous year and down 59.5% over ten years.

Over the whole period, net official flows from un agencies, undp (current us$), per square in Tonga peaked at 1,111 current US$ per square kilometre in 1982 and was at its lowest, 13.89 current US$ per square kilometre, in 1998.

Tonga ranks 27th of 175 countries on this measure, in the top quarter.

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

Averages by decade

DecadeAverage LowestHighest Years
1960s 27.78 current US$ per square kilometre 27.78 current US$ per square kilometre 27.78 current US$ per square kilometre 1
1970s 240.28 current US$ per square kilometre 27.78 current US$ per square kilometre 569.44 current US$ per square kilometre 10
1980s 701.39 current US$ per square kilometre 319.44 current US$ per square kilometre 1,111 current US$ per square kilometre 10
1990s 294.44 current US$ per square kilometre 13.89 current US$ per square kilometre 611.11 current US$ per square kilometre 10
2000s 93.75 current US$ per square kilometre 13.89 current US$ per square kilometre 166.67 current US$ per square kilometre 4
2010s 137.2 current US$ per square kilometre 30.38 current US$ per square kilometre 263.89 current US$ per square kilometre 7

Countries ranked near Tonga

  1. 24 Togo 130.93 current US$ per square kilometre compare
  2. 25 Grenada 125.18 current US$ per square kilometre compare
  3. 26 Saint Vincent and the Grenadines 110 current US$ per square kilometre compare
  4. 28 Lebanon 101.11 current US$ per square kilometre compare
  5. 29 Palau 92.39 current US$ per square kilometre compare
  6. 30 Sierra Leone 87.07 current US$ per square kilometre compare

See the full ranking of 222 places →

More aid effectiveness data for Tonga

All data for Tonga →

Frequently asked questions

What is net official flows from un agencies, undp (current us$), per square in Tonga?
Net official flows from un agencies, undp (current us$), per square in Tonga was 106.79 current US$ per square kilometre in 2018, according to Statizoid (derived).
What is the highest net official flows from un agencies, undp (current us$), per square recorded in Tonga?
The highest recorded value was 1,111 current US$ per square kilometre in 1982.
What is the lowest net official flows from un agencies, undp (current us$), per square recorded in Tonga?
The lowest recorded value was 13.89 current US$ per square kilometre in 1998.
How does Tonga rank for net official flows from un agencies, undp (current us$), per square?
Tonga ranks 27th out of 175 countries with data for 2018.
Is net official flows from un agencies, undp (current us$), per square rising or falling in Tonga?
Over the last ten years it is down 59.5%. 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 Net official flows from UN agencies, UNDP (current US$), per square kilometre. Statizoid updates them automatically from the source API.

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Net official flows from UN agencies, UNDP (current US$), per square in Tonga. Statizoid, drawing on Statizoid (derived). Retrieved 22 August 2026, from https://aid.statizoid.com/stat/net-official-flows-from-un-agencies-undp-current-us-per-square-kilometre/tonga/

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How this figure is calculated

Net official flows from UN agencies, UNDP (current US$) 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.

Net official flows from UN agencies, UNDP (current US$) ÷ 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
Net official flows from UN agencies, UNDP (current US$), per square kilometre
Unit
current US$ per square kilometre
Source
Statizoid (derived)
Licence
Derived by Statizoid from the sources named on the page
Coverage
222 places, 9,643 data points, 1968–2023
Last refreshed

Net official flows from UN agencies, UNDP (current US$) 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.