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

Bulgaria
0.6942 NPIA
in 2018
Iceland
0.6415 NPIA
in 2018
Bulgaria rank
36th
Iceland rank
38th

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

  • Bulgaria
  • Iceland
0.20.40.60.81200020092018

How they compare

Bulgaria currently reports 0.6942 NPIA against 0.6415 NPIA in Iceland, a difference of 0.0527 NPIA.

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

The two have swapped places 2 times across 6 shared years of data; in 2000 it was Bulgaria ahead.

Bulgaria ranks 36th and Iceland ranks 38th of 44 countries.

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

Head to head by decade

Decade Bulgaria Iceland Difference Ahead
2000s 0.6236 NPIA 0.767 NPIA 0.1434 NPIA Iceland
2010s 0.5341 NPIA 0.6032 NPIA 0.0691 NPIA Iceland

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 Iceland?
Bulgaria, at 0.6942 NPIA against 0.6415 NPIA in Iceland as of 2018.
What is the difference in proportion of students at the end of lower secondary education between Bulgaria and Iceland?
0.0527 NPIA, with Bulgaria ahead.
How many years of comparable data are there for Bulgaria and Iceland?
6 years are reported by both, from 2000 to 2018.
How do Bulgaria and Iceland rank globally for proportion of students at the end of lower secondary education?
Bulgaria ranks 36th and Iceland ranks 38th 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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Bulgaria vs Iceland: Proportion of students at the end of lower secondary education. 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-education-achieving-at-least-a-25/bulgaria/iceland/

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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 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

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/