Oman vs Tonga: Theoretical duration of lower secondary education (years), annual

Oman
0 % change on previous year
in 2025
Tonga
0 % change on previous year
in 2025
Oman rank
1st
Tonga rank
1st

Theoretical duration of lower secondary education (years), annual over time

  • Oman
  • Tonga
-250255075100197119982025

How they compare

Oman currently reports 0 % change on previous year against 0 % change on previous year in Tonga, a difference of 0 % change on previous year.

The two have swapped places 4 times across 55 shared years of data; in 1971 it was Tonga ahead.

Oman ranks 1st and Tonga ranks 1st of 221 countries.

Oman has averaged higher in every one of the 6 decades both report.

Head to head by decade

Decade Oman Tonga Difference Ahead
1970s 0 % change on previous year 0 % change on previous year 0 % change on previous year
1980s 0 % change on previous year 0 % change on previous year 0 % change on previous year
1990s 0 % change on previous year 0 % change on previous year 0 % change on previous year
2000s 0 % change on previous year 0 % change on previous year 0 % change on previous year
2010s 10 % change on previous year 2.5 % change on previous year 7.5 % change on previous year Oman
2020s 0 % change on previous year -3.33 % change on previous year 3.33 % change on previous year Oman

Averages of every year both report within each decade.

Frequently asked questions

Which has higher theoretical duration of lower secondary education (years), annual, Oman or Tonga?
Oman, at 0 % change on previous year against 0 % change on previous year in Tonga as of 2025.
What is the difference in theoretical duration of lower secondary education (years), annual between Oman and Tonga?
0 % change on previous year, with Oman ahead.
How many years of comparable data are there for Oman and Tonga?
55 years are reported by both, from 1971 to 2025.
How do Oman and Tonga rank globally for theoretical duration of lower secondary education (years), annual?
Oman ranks 1st and Tonga ranks 1st of 221 countries.
Where does this data come from?
Statizoid (derived), published as Theoretical duration of lower secondary education (years), annual growth rate. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Oman vs Tonga: Theoretical duration of lower secondary education (years), annual. Statizoid, drawing on Statizoid (derived). Retrieved 02 September 2026, from https://education.statizoid.com/compare/theoretical-duration-of-lower-secondary-education-years-annual-growth-rate/oman/tonga/

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About this data

Indicator
Theoretical duration of lower secondary education (years), annual growth rate
Unit
% change on previous year
Source
Statizoid (derived)
Licence
Derived by Statizoid from the sources named on the page
Coverage
221 places, 11,587 data points, 1971–2025
Last refreshed

The year-on-year percentage change in Theoretical duration of lower secondary education (years). Computed from consecutive annual observations; years either side of a gap are skipped rather than bridged.