How many years of comparable data are there for Iceland and Thailand?

6 years are reported by both, from 2000 to 2018.

Where does this data come from?

UNESCO Institute for Statistics, published as Proportion of students at the end of lower secondary education achieving at least a minimum proficiency level in reading, adjusted native parity index (NPIA). Statizoid refreshes it automatically from the source and publishes the full history for both places.

Iceland vs Thailand: Proportion of students at the end of lower secondary education

Iceland

0.6415 NPIA

in 2018

Thailand

0.636 NPIA

in 2018

Iceland rank

38th

Thailand rank

39th

Proportion of students at the end of lower secondary education over time

Iceland
Thailand

How they compare

Iceland currently reports 0.6415 NPIA against 0.636 NPIA in Thailand, a difference of 0.0055 NPIA.

The two have swapped places 4 times across 6 shared years of data; in 2000 it was Iceland ahead.

Iceland ranks 38th and Thailand ranks 39th of 44 countries.

Across the 2 decades both report, Iceland averaged higher in 1 and Thailand in 1.

Head to head by decade

Decade	Iceland	Thailand	Difference	Ahead
2000s	0.7863 NPIA	0.7344 NPIA	0.0519 NPIA	Iceland
2010s	0.6032 NPIA	0.7437 NPIA	0.1405 NPIA	Thailand

Averages of every year both report within each decade.

Frequently asked questions

Which has higher proportion of students at the end of lower secondary education, Iceland or Thailand?: Iceland, at 0.6415 NPIA against 0.636 NPIA in Thailand as of 2018.
What is the difference in proportion of students at the end of lower secondary education between Iceland and Thailand?: 0.0055 NPIA, with Iceland ahead.
How many years of comparable data are there for Iceland and Thailand?: 6 years are reported by both, from 2000 to 2018.
How do Iceland and Thailand rank globally for proportion of students at the end of lower secondary education?: Iceland ranks 38th and Thailand ranks 39th of 44 countries.
Where does this data come from?: UNESCO Institute for Statistics, published as Proportion of students at the end of lower secondary education achieving at least a minimum proficiency level in reading, adjusted native parity index (NPIA). Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Iceland vs Thailand: Proportion of students at the end of lower secondary education. Statizoid, drawing on UNESCO Institute for Statistics. Retrieved 06 September 2026, from https://reference.statizoid.com/compare/proportion-of-students-at-the-end-of-lower-secondary-education-achieving-at-least-a-25/iceland/thailand/

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<a href="https://reference.statizoid.com/compare/proportion-of-students-at-the-end-of-lower-secondary-education-achieving-at-least-a-25/iceland/thailand/">Iceland vs Thailand: Proportion of students at the end of lower secondary education</a> — Statizoid

About this data

Indicator: Proportion of students at the end of lower secondary education achieving at least a minimum proficiency level in reading, adjusted native parity index (NPIA)
Unit: NPIA
Source: UNESCO Institute for Statistics
Licence: CC BY 4.0 (World Bank Open Data)
Coverage: 44 places, 280 data points, 2000–2018
Last refreshed: 04 September 2026

The Adjusted Native Parity Index (NPIA) is calculated by dividing the immigrant value for the indicator by the non-immigrant value for the indicator. If the resulting value exceeds 1, the ratio is inverted and subtracted from 2. The adjusted native parity index is symmetrical around 1 and lies in the range 0-2. An adjusted NPI equal to 1 indicates parity between immigrants and non-immigrants. In general, a value less than 1 indicates disparity in favor of non-immigrants and a value greater than 1 indicates disparity in favor of immigrants. For more information, consult the UNESCO Institute for Statistics: http://uis.unesco.org/