How many years of comparable data are there for Latvia 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 gender parity index (GPIA). Statizoid refreshes it automatically from the source and publishes the full history for both places.

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

Latvia

0.9987 GPIA

in 2018

Portugal

1 GPIA

in 2018

Latvia rank

32nd

Portugal rank

29th

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

Latvia
Portugal

How they compare

Portugal currently reports 1 GPIA against 0.9987 GPIA in Latvia, a difference of 0.0013 GPIA.

The two have swapped places 1 time across 7 shared years of data; in 2000 it was Latvia ahead.

Latvia ranks 32nd and Portugal ranks 29th of 50 countries.

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

Head to head by decade

Decade	Latvia	Portugal	Difference	Ahead
2000s	1 GPIA	0.9468 GPIA	0.0548 GPIA	Latvia
2010s	1.03 GPIA	0.9887 GPIA	0.0371 GPIA	Latvia

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, Latvia or Portugal?: Portugal, at 1 GPIA against 0.9987 GPIA in Latvia as of 2018.
What is the difference in proportion of students at the end of lower secondary achieving at between Latvia and Portugal?: 0.0013 GPIA, with Portugal ahead.
How many years of comparable data are there for Latvia and Portugal?: 7 years are reported by both, from 2000 to 2018.
How do Latvia and Portugal rank globally for proportion of students at the end of lower secondary achieving at?: Latvia ranks 32nd and Portugal ranks 29th of 50 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 gender parity index (GPIA). Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Latvia vs Portugal: Proportion of students at the end of lower secondary achieving at. Statizoid, drawing on UNESCO Institute for Statistics. Retrieved 03 September 2026, from https://reference.statizoid.com/compare/proportion-of-students-at-the-end-of-lower-secondary-achieving-at-least-a-minimum/latvia/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/latvia/portugal/">Latvia 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 gender parity index (GPIA)
Unit: GPIA
Source: UNESCO Institute for Statistics
Licence: CC BY 4.0 (World Bank Open Data)
Coverage: 50 places, 318 data points, 1995–2018
Last refreshed: 21 August 2026

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