Bulgaria vs Slovakia: Proportion of students at the end of lower secondary education

Bulgaria
0.8955 NPIA
in 2022
Slovakia
0.8386 NPIA
in 2022
Bulgaria rank
17th
Slovakia rank
19th

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

  • Bulgaria
  • Slovakia
00.250.50.751200020112022

How they compare

Bulgaria currently reports 0.8955 NPIA against 0.8386 NPIA in Slovakia, a difference of 0.0569 NPIA.

That makes Bulgaria's figure about 1.1 times Slovakia's.

The two have swapped places 1 time across 6 shared years of data; in 2006 it was Slovakia ahead.

Bulgaria ranks 17th and Slovakia ranks 19th of 50 countries.

Across the 3 decades both report, Bulgaria averaged higher in 1 and Slovakia in 2.

Head to head by decade

Decade Bulgaria Slovakia Difference Ahead
2000s 0.4704 NPIA 0.9417 NPIA 0.4712 NPIA Slovakia
2010s 0.5453 NPIA 0.7442 NPIA 0.1989 NPIA Slovakia
2020s 0.8955 NPIA 0.8386 NPIA 0.0569 NPIA Bulgaria

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, Bulgaria or Slovakia?
Bulgaria, at 0.8955 NPIA against 0.8386 NPIA in Slovakia as of 2022.
What is the difference in proportion of students at the end of lower secondary education between Bulgaria and Slovakia?
0.0569 NPIA, with Bulgaria ahead.
How many years of comparable data are there for Bulgaria and Slovakia?
6 years are reported by both, from 2006 to 2022.
How do Bulgaria and Slovakia rank globally for proportion of students at the end of lower secondary education?
Bulgaria ranks 17th and Slovakia ranks 19th of 50 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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Bulgaria vs Slovakia: Proportion of students at the end of lower secondary education. Statizoid, drawing on UNESCO Institute for Statistics. Retrieved 14 September 2026, from https://education.statizoid.com/compare/proportion-of-students-at-the-end-of-lower-secondary-education-achieving-at-least-a-38/bulgaria/slovak-republic/

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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-SA 3.0 IGO (UNESCO Institute for Statistics)
Coverage
50 places, 355 data points, 1995–2023
Last refreshed

February 2026 Data Release