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

Bulgaria
0.7065 NPIA
in 2018
Greece
0.6826 NPIA
in 2018
Bulgaria rank
35th
Greece rank
38th

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

  • Bulgaria
  • Greece
00.250.50.751200020092018

How they compare

Bulgaria currently reports 0.7065 NPIA against 0.6826 NPIA in Greece, a difference of 0.0239 NPIA.

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

Bulgaria ranks 35th and Greece ranks 38th of 43 countries.

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

Head to head by decade

Decade Bulgaria Greece Difference Ahead
2000s 0.6715 NPIA 0.7781 NPIA 0.1066 NPIA Greece
2010s 0.5453 NPIA 0.6766 NPIA 0.1313 NPIA Greece

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 Greece?
Bulgaria, at 0.7065 NPIA against 0.6826 NPIA in Greece as of 2018.
What is the difference in proportion of students at the end of lower secondary education between Bulgaria and Greece?
0.0239 NPIA, with Bulgaria ahead.
How many years of comparable data are there for Bulgaria and Greece?
6 years are reported by both, from 2000 to 2018.
How do Bulgaria and Greece rank globally for proportion of students at the end of lower secondary education?
Bulgaria ranks 35th and Greece ranks 38th 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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Bulgaria vs Greece: 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-11/bulgaria/greece/

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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/