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

Iceland
0.7681 NPIA
in 2018
Portugal
0.7683 NPIA
in 2018
Iceland rank
28th
Portugal rank
27th

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

  • Iceland
  • Portugal
00.250.50.751200020092018

How they compare

Portugal currently reports 0.7683 NPIA against 0.7681 NPIA in Iceland, a difference of 0.0002 NPIA.

The two have swapped places 4 times across 7 shared years of data; in 2000 it was Portugal ahead.

Iceland ranks 28th and Portugal ranks 27th of 43 countries.

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

Head to head by decade

Decade Iceland Portugal Difference Ahead
2000s 0.8137 NPIA 0.7797 NPIA 0.034 NPIA Iceland
2010s 0.741 NPIA 0.7932 NPIA 0.0523 NPIA Portugal

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 Portugal?
Portugal, at 0.7683 NPIA against 0.7681 NPIA in Iceland as of 2018.
What is the difference in proportion of students at the end of lower secondary education between Iceland and Portugal?
0.0002 NPIA, with Portugal ahead.
How many years of comparable data are there for Iceland and Portugal?
7 years are reported by both, from 2000 to 2018.
How do Iceland and Portugal rank globally for proportion of students at the end of lower secondary education?
Iceland ranks 28th and Portugal ranks 27th of 43 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 mathematics, 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 Portugal: Proportion of students at the end of lower secondary education. Statizoid, drawing on UNESCO Institute for Statistics. Retrieved 08 September 2026, from https://reference.statizoid.com/compare/proportion-of-students-at-the-end-of-lower-secondary-education-achieving-at-least-a-11/iceland/portugal/

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About this data

Indicator
Proportion of students at the end of lower secondary education achieving at least a minimum proficiency level in mathematics, adjusted native parity index (NPIA)
Unit
NPIA
Source
UNESCO Institute for Statistics
Licence
CC BY 4.0 (World Bank Open Data)
Coverage
43 places, 274 data points, 1995–2018
Last refreshed

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/