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

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

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

  • Spain
  • Tonga
-50050100197119982025

How they compare

Spain 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.

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

Across the 6 decades both report, Spain averaged higher in 2 and Tonga in 1.

Head to head by decade

Decade Spain 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 6.67 % change on previous year 0 % change on previous year 6.67 % change on previous year Spain
2000s 0 % change on previous year 0 % change on previous year 0 % change on previous year
2010s -2.5 % change on previous year 2.5 % change on previous year 5 % change on previous year Tonga
2020s 0 % change on previous year -3.33 % change on previous year 3.33 % change on previous year Spain

Averages of every year both report within each decade.

Frequently asked questions

Which has higher theoretical duration of lower secondary education (years), annual, Spain or Tonga?
Spain, 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 Spain and Tonga?
0 % change on previous year, with Spain ahead.
How many years of comparable data are there for Spain and Tonga?
55 years are reported by both, from 1971 to 2025.
How do Spain and Tonga rank globally for theoretical duration of lower secondary education (years), annual?
Spain 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.

Individual pages

Share, cite or embed this page

Cite this page

Spain 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/spain/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://education.statizoid.com/compare/theoretical-duration-of-lower-secondary-education-years-annual-growth-rate/spain/tonga/">Spain vs Tonga: Theoretical duration of lower secondary education (years), annual</a> — Statizoid

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.