How many years of comparable data are there for Belgium and Portugal?

7 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 achieving at least a minimum proficiency level in mathematics, adjusted wealth parity index (WPIA). Statizoid refreshes it automatically from the source and publishes the full history for both places.

Belgium vs Portugal: Proportion of students at the end of lower secondary achieving at

Belgium

0.6663 WPIA

in 2018

Portugal

0.6478 WPIA

in 2018

Belgium rank

21st

Portugal rank

23rd

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

Belgium
Portugal

How they compare

Belgium currently reports 0.6663 WPIA against 0.6478 WPIA in Portugal, a difference of 0.0185 WPIA.

Across all 7 years both countries report, Belgium has been ahead every year.

Belgium ranks 21st and Portugal ranks 23rd of 41 countries.

Belgium has averaged higher in every one of the 2 decades both report.

Head to head by decade

Decade	Belgium	Portugal	Difference	Ahead
2000s	0.6594 WPIA	0.5602 WPIA	0.0992 WPIA	Belgium
2010s	0.6734 WPIA	0.6388 WPIA	0.0346 WPIA	Belgium

Averages of every year both report within each decade.

Frequently asked questions

Which has higher proportion of students at the end of lower secondary achieving at, Belgium or Portugal?: Belgium, at 0.6663 WPIA against 0.6478 WPIA in Portugal as of 2018.
What is the difference in proportion of students at the end of lower secondary achieving at between Belgium and Portugal?: 0.0185 WPIA, with Belgium ahead.
How many years of comparable data are there for Belgium and Portugal?: 7 years are reported by both, from 2000 to 2018.
How do Belgium and Portugal rank globally for proportion of students at the end of lower secondary achieving at?: Belgium ranks 21st and Portugal ranks 23rd of 41 countries.
Where does this data come from?: UNESCO Institute for Statistics, published as Proportion of students at the end of lower secondary achieving at least a minimum proficiency level in mathematics, adjusted wealth parity index (WPIA). Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Belgium vs Portugal: Proportion of students at the end of lower secondary achieving at. Statizoid, drawing on UNESCO Institute for Statistics. Retrieved 05 September 2026, from https://reference.statizoid.com/compare/proportion-of-students-at-the-end-of-lower-secondary-achieving-at-least-a-minimum-3/belgium/portugal/

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<a href="https://reference.statizoid.com/compare/proportion-of-students-at-the-end-of-lower-secondary-achieving-at-least-a-minimum-3/belgium/portugal/">Belgium vs Portugal: Proportion of students at the end of lower secondary achieving at</a> — Statizoid

About this data

Indicator: Proportion of students at the end of lower secondary achieving at least a minimum proficiency level in mathematics, adjusted wealth parity index (WPIA)
Unit: WPIA
Source: UNESCO Institute for Statistics
Licence: CC BY 4.0 (World Bank Open Data)
Coverage: 41 places, 266 data points, 2000–2018
Last refreshed: 04 September 2026

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