How many years of comparable data are there for Greece and Turkey?

7 years are reported by both, from 2003 to 2022.

Where does this data come from?

OECD (2023) – with minor processing by Our World in Data, published as Average performance of 15-year-old students in mathematics. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Greece vs Turkey: Average performance of 15-year-old students in mathematics

Greece

430.15 score

in 2022

Turkey

453.15 score

in 2022

Greece rank

40th

Turkey rank

39th

Average performance of 15-year-old students in mathematics over time

Greece
Turkey

How they compare

Turkey currently reports 453.15 score against 430.15 score in Greece, a difference of 23 score.

That makes Turkey's figure about 1.1 times Greece's.

The two have swapped places 1 time across 7 shared years of data; in 2003 it was Greece ahead.

Greece ranks 40th and Turkey ranks 39th of 57 countries.

Across the 3 decades both report, Greece averaged higher in 2 and Turkey in 1.

Head to head by decade

Decade	Greece	Turkey	Difference	Ahead
2000s	456.74 score	430.94 score	25.8 score	Greece
2010s	452.66 score	440.65 score	12.01 score	Greece
2020s	430.15 score	453.15 score	23.01 score	Turkey

Averages of every year both report within each decade.

Frequently asked questions

Which has higher average performance of 15-year-old students in mathematics, Greece or Turkey?: Turkey, at 453.15 score against 430.15 score in Greece as of 2022.
What is the difference in average performance of 15-year-old students in mathematics between Greece and Turkey?: 23 score, with Turkey ahead.
How many years of comparable data are there for Greece and Turkey?: 7 years are reported by both, from 2003 to 2022.
How do Greece and Turkey rank globally for average performance of 15-year-old students in mathematics?: Greece ranks 40th and Turkey ranks 39th of 57 countries.
Where does this data come from?: OECD (2023) – with minor processing by Our World in Data, published as Average performance of 15-year-old students in mathematics. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Individual pages

About this data

Indicator: Average performance of 15-year-old students in mathematics
Unit: score
Source: OECD (2023) – with minor processing by Our World in Data
Licence: CC BY 4.0 (Our World in Data)
Coverage: 57 places, 373 data points, 2003–2022
Last refreshed: 07 August 2026

Assessed through the PISA mathematics scale, which measures how well someone can use math to solve everyday problems and understand the role of math in the real world.