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Digest of Education Statistics
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Table 602.50. Average reading literacy scores of 15-year-old students and percentage attaining reading literacy proficiency levels, by country or other education system: 2018
[Standard errors appear in parentheses]
Country or other education
system
Average
reading
literacy
score1
Percentage attaining reading literacy proficiency levels2
Below level 2 At level 2 At level 3 At level 4 At or above level 5
Total below
level 2
Below level
1c
At level 1c At level 1b At level 1a Total
at or above
level 5
At level 5 At level 6
1 2 3 4 5 6 7 8 9 10 11 12 13
OECD average3 487   (0.4) 22.6   (0.16) 0.1   (0.01) 1.4   (0.04) 6.2   (0.09) 15.0   (0.12) 23.7   (0.13) 26.0   (0.14) 18.9   (0.12) 8.7   (0.10) 7.4   (0.09) 1.3   (0.04)
Australia 503   (1.6) 19.6   (0.50) 0.1 !! (0.06) 1.4   (0.15) 5.6   (0.29) 12.5   (0.36) 21.1   (0.48) 25.4   (0.51) 20.9   (0.49) 13.0   (0.46) 10.3   (0.36) 2.7   (0.21)
Austria 484   (2.7) 23.6   (1.02) # !! (†) 0.9   (0.19) 6.4   (0.57) 16.3   (0.84) 23.5   (0.83) 26.2   (0.87) 19.3   (0.78) 7.4   (0.50) 6.7   (0.47) 0.7   (0.13)
Belgium 493   (2.3) 21.3   (0.88) 0.1 !! (0.05) 1.2   (0.19) 6.0   (0.43) 14.0   (0.62) 22.4   (0.66) 26.5   (0.68) 20.4   (0.71) 9.5   (0.53) 8.3   (0.49) 1.3   (0.20)
Canada 520   (1.8) 13.8   (0.49) # !! (†) 0.7   (0.11) 3.1   (0.20) 10.0   (0.39) 20.1   (0.57) 27.2   (0.46) 24.0   (0.51) 15.0   (0.55) 12.2   (0.46) 2.8   (0.23)
Chile 452   (2.6) 31.7   (1.20) 0.1 !! (0.09) 1.7   (0.24) 8.9   (0.62) 21.0   (0.90) 29.5   (0.86) 24.4   (0.86) 11.8   (0.60) 2.6   (0.30) 2.4   (0.28) 0.2 ! (0.07)

Colombia4
412   (3.3) 49.9   (1.71) 0.2 ! (0.08) 3.6   (0.45) 15.8   (0.93) 30.3   (1.03) 27.7   (0.99) 15.8   (0.85) 5.7   (0.55) 0.9   (0.18) 0.9   (0.18) # !! (†)
Czech Republic 490   (2.5) 20.7   (1.12) 0.1 !! (0.06) 0.7   (0.21) 5.0   (0.54) 15.0   (0.78) 25.0   (0.87) 26.9   (0.90) 19.1   (0.78) 8.2   (0.54) 7.2   (0.48) 1.1   (0.19)
Denmark 501   (1.8) 16.0   (0.68) # !! (†) 0.5   (0.14) 3.5   (0.31) 11.9   (0.54) 23.9   (0.80) 30.1   (0.89) 21.6   (0.80) 8.4   (0.51) 7.3   (0.48) 1.1   (0.20)
Estonia 523   (1.8) 11.1   (0.59) #   (†) 0.3 ! (0.10) 2.1   (0.23) 8.7   (0.50) 21.2   (0.86) 29.9   (0.87) 24.0   (0.80) 13.9   (0.70) 11.1   (0.57) 2.8   (0.32)
Finland 520   (2.3) 13.5   (0.71) # !! (†) 0.8   (0.16) 3.3   (0.38) 9.4   (0.57) 19.2   (0.70) 27.6   (0.81) 25.4   (0.78) 14.2   (0.72) 11.9   (0.67) 2.4   (0.33)

France
493   (2.3) 20.9   (0.74) # !! (†) 1.1   (0.17) 5.7   (0.43) 14.0   (0.65) 22.8   (0.82) 26.6   (0.85) 20.5   (0.71) 9.2   (0.70) 8.1   (0.62) 1.1   (0.19)
Germany 498   (3.0) 20.7   (1.05) 0.1 !! (0.05) 1.3   (0.26) 5.7   (0.51) 13.6   (0.84) 21.1   (0.81) 25.4   (0.75) 21.5   (0.87) 11.3   (0.69) 9.5   (0.60) 1.8   (0.23)
Greece 457   (3.6) 30.5   (1.51) 0.1 !! (0.07) 2.1   (0.33) 9.3   (0.75) 19.0   (0.90) 27.3   (0.79) 25.2   (1.04) 13.3   (0.80) 3.7   (0.50) 3.3   (0.44) 0.3 ! (0.11)
Hungary 476   (2.3) 25.3   (0.91) # !! (†) 1.2   (0.23) 7.0   (0.62) 17.0   (0.77) 25.2   (0.87) 26.3   (0.93) 17.5   (0.79) 5.7   (0.54) 5.2   (0.48) 0.5   (0.15)
Iceland 474   (1.7) 26.4   (0.86) 0.1 !! (0.08) 2.3   (0.35) 8.0   (0.72) 15.9   (0.85) 24.6   (0.95) 25.1   (0.85) 16.9   (0.73) 7.1   (0.57) 6.2   (0.58) 0.9   (0.23)

Ireland
518   (2.2) 11.8   (0.67) # !! (†) 0.2 ! (0.08) 2.1   (0.27) 9.5   (0.60) 21.7   (0.82) 30.3   (0.86) 24.1   (0.79) 12.1   (0.67) 10.3   (0.58) 1.8   (0.27)
Israel 470   (3.7) 31.1   (1.30) 0.7   (0.19) 5.0   (0.51) 10.4   (0.67) 15.0   (0.85) 19.4   (0.74) 21.6   (0.79) 17.5   (0.79) 10.4   (0.66) 8.4   (0.55) 2.0   (0.28)
Italy 476   (2.4) 23.3   (0.97) 0.1 ! (0.07) 1.7   (0.27) 6.7   (0.58) 14.8   (0.71) 26.3   (0.88) 28.2   (0.94) 16.9   (0.71) 5.3   (0.48) 4.9   (0.43) 0.5   (0.13)
Japan 504   (2.7) 16.8   (0.96) 0.1 !! (0.04) 0.7   (0.16) 4.1   (0.43) 12.0   (0.66) 22.5   (0.85) 28.6   (0.95) 21.9   (0.76) 10.3   (0.72) 8.6   (0.63) 1.7   (0.26)
Korea, Republic of 514   (2.9) 15.1   (0.91) 0.1 !! (0.06) 1.1   (0.20) 4.3   (0.38) 9.6   (0.66) 19.6   (0.69) 27.6   (0.80) 24.6   (0.82) 13.1   (0.87) 10.8   (0.65) 2.3   (0.36)

Latvia
479   (1.6) 22.4   (0.75) # !! (†) 0.6   (0.14) 5.2   (0.44) 16.6   (0.61) 27.4   (0.85) 28.8   (0.84) 16.6   (0.73) 4.8   (0.43) 4.4   (0.43) 0.4 ! (0.14)
Lithuania 476   (1.5) 24.4   (0.75) # !! (†) 1.0   (0.20) 6.3   (0.42) 17.0   (0.59) 26.1   (0.75) 27.7   (0.74) 16.9   (0.58) 5.0   (0.37) 4.5   (0.37) 0.4   (0.11)
Luxembourg 470   (1.1) 29.3   (0.57) 0.2 !! (0.09) 2.4   (0.23) 9.2   (0.44) 17.6   (0.59) 23.7   (0.67) 23.5   (0.74) 15.9   (0.62) 7.6   (0.49) 6.4   (0.44) 1.3   (0.18)
Mexico4 420   (2.7) 44.7   (1.33) # !! (†) 2.5   (0.40) 13.1   (0.79) 29.1   (1.10) 31.7   (1.00) 17.5   (0.88) 5.3   (0.64) 0.8   (0.19) 0.7   (0.19) # !! (†)
Netherlands5 485   (2.7) 24.1   (1.03) 0.1 !! (0.08) 1.3   (0.25) 7.0   (0.59) 15.6   (0.72) 23.7   (0.81) 24.3   (1.05) 18.8   (0.84) 9.1   (0.61) 7.9   (0.57) 1.2   (0.22)

New Zealand
506   (2.0) 19.0   (0.79) 0.1 !! (0.05) 1.0   (0.19) 5.2   (0.48) 12.7   (0.62) 20.8   (0.73) 24.6   (0.71) 22.5   (0.71) 13.1   (0.61) 10.7   (0.58) 2.4   (0.32)
Norway 499   (2.2) 19.3   (0.77) 0.1 ! (0.05) 1.7   (0.20) 5.6   (0.42) 11.9   (0.56) 21.5   (0.72) 26.4   (0.88) 21.6   (0.81) 11.3   (0.60) 9.6   (0.57) 1.6   (0.24)
Poland 512   (2.7) 14.7   (0.75) # !! (†) 0.5   (0.14) 3.3   (0.34) 10.8   (0.65) 22.4   (0.77) 27.7   (0.79) 23.0   (0.82) 12.2   (0.84) 10.1   (0.71) 2.1   (0.34)
Portugal6 492   (2.4) 20.2   (0.92) # !! (†) 0.9   (0.18) 5.0   (0.49) 14.3   (0.69) 23.3   (0.74) 28.2   (0.84) 21.0   (0.88) 7.3   (0.63) 6.5   (0.61) 0.8   (0.17)
Slovak Republic 458   (2.2) 31.4   (0.98) 0.1 !! (0.08) 2.3   (0.34) 9.2   (0.68) 19.8   (0.78) 26.9   (0.91) 23.5   (0.95) 13.6   (0.69) 4.6   (0.41) 4.1   (0.36) 0.5 ! (0.15)

Slovenia
495   (1.2) 17.9   (0.66) # !! (†) 0.6   (0.16) 4.3   (0.39) 12.9   (0.54) 24.5   (0.75) 29.5   (0.88) 20.3   (0.68) 7.8   (0.46) 6.8   (0.47) 1.0   (0.22)
Spain7 ---   (†) ---   (†) ---   (†) ---   (†) ---   (†) ---   (†) ---   (†) ---   (†) ---   (†) ---   (†) ---   (†) ---   (†)
Sweden 506   (3.0) 18.4   (1.03) 0.2 ! (0.07) 1.5   (0.20) 5.1   (0.50) 11.6   (0.72) 20.6   (0.76) 25.5   (0.75) 22.3   (0.81) 13.3   (0.73) 10.9   (0.68) 2.4   (0.27)
Switzerland 484   (3.1) 23.6   (1.08) 0.1 !! (0.06) 1.3   (0.26) 7.1   (0.59) 15.1   (0.74) 23.4   (0.95) 26.3   (0.83) 18.5   (0.76) 8.1   (0.68) 6.9   (0.64) 1.2   (0.24)
Turkey4 466   (2.2) 26.1   (1.05) # !! (†) 0.7   (0.17) 6.3   (0.61) 19.1   (0.72) 30.2   (0.88) 26.9   (0.98) 13.5   (0.60) 3.3   (0.50) 3.1   (0.46) 0.2 ! (0.09)

United Kingdom
504   (2.6) 17.3   (0.89) # !! (†) 0.8   (0.16) 4.2   (0.39) 12.3   (0.68) 23.0   (0.72) 27.2   (0.67) 21.0   (0.82) 11.5   (0.76) 9.5   (0.63) 2.0   (0.24)
United States5 505   (3.6) 19.3   (1.11) 0.1 !! (0.05) 1.1   (0.25) 5.4   (0.47) 12.7   (0.76) 21.1   (0.80) 24.7   (0.77) 21.4   (0.84) 13.5   (0.86) 10.7   (0.72) 2.8   (0.36)

Non-OECD education systems
                                                                       
Albania 405   (1.9) 52.2   (1.09) 0.1 !! (0.08) 2.9   (0.30) 16.4   (0.73) 32.8   (0.94) 29.9   (0.78) 14.0   (0.71) 3.5   (0.36) 0.4   (0.10) 0.4   (0.10) # !! (†)
Argentina 402   (3.0) 52.1   (1.35) 1.3   (0.23) 6.7   (0.57) 17.4   (0.73) 26.7   (0.87) 25.7   (0.82) 16.2   (0.71) 5.3   (0.46) 0.7   (0.16) 0.7   (0.15) # !! (†)
Baku (Azerbaijan)8 389   (2.5) 60.4   (1.30) 0.1 ! (0.06) 3.7   (0.36) 19.6   (0.81) 37.0   (1.07) 28.6   (0.87) 9.2   (0.64) 1.6   (0.41) 0.1 !! (0.12) 0.1 !! (0.11) # !! (†)
Beijing, Shanghai,
     Jiangsu, Zhejiang
     (China)
555   (2.7) 5.2   (0.61) # !! (†) 0.1 !! (0.06) 0.7   (0.16) 4.3   (0.53) 14.3   (0.83) 27.9   (0.97) 30.8   (0.97) 21.7   (1.11) 17.5   (0.88) 4.2   (0.58)
Belarus 474   (2.4) 23.4   (1.04) # !! (†) 0.8   (0.19) 5.8   (0.49) 16.8   (0.80) 28.7   (0.85) 28.0   (0.96) 16.0   (0.73) 3.9   (0.42) 3.7   (0.40) 0.3   (0.08)

Bosnia and Herzegovina
403   (2.9) 53.7   (1.64) 0.1 !! (0.06) 2.8   (0.37) 17.5   (0.97) 33.2   (1.06) 28.8   (1.13) 14.3   (0.91) 3.0   (0.39) 0.2 ! (0.07) 0.2 ! (0.07) #   (†)
Brazil4 413   (2.1) 50.0   (0.90) 0.4   (0.10) 5.3   (0.40) 17.7   (0.57) 26.7   (0.66) 24.5   (0.62) 16.3   (0.60) 7.4   (0.46) 1.8   (0.24) 1.7   (0.22) 0.2 ! (0.06)
Brunei Darussalam 408   (0.9) 51.8   (0.61) 0.3 ! (0.12) 5.4   (0.32) 19.1   (0.53) 27.0   (0.74) 24.5   (0.57) 15.5   (0.51) 6.9   (0.33) 1.3   (0.22) 1.3   (0.21) # !! (†)
Bulgaria4 420   (3.9) 47.1   (1.69) 0.3 ! (0.10) 4.6   (0.63) 17.1   (1.09) 25.1   (0.93) 24.9   (0.97) 17.3   (0.94) 8.4   (0.70) 2.3   (0.36) 2.2   (0.32) 0.2 ! (0.07)
Chinese Taipei 503   (2.8) 17.8   (0.81) 0.1 ! (0.07) 1.2   (0.19) 4.5   (0.40) 12.0   (0.59) 21.8   (0.70) 27.4   (0.80) 22.0   (0.89) 10.9   (0.81) 9.3   (0.67) 1.6   (0.31)

Costa Rica4
426   (3.4) 42.0   (1.62) 0.1 !! (0.05) 1.8   (0.32) 11.3   (0.70) 28.9   (1.14) 32.1   (1.10) 19.4   (1.07) 5.9   (0.85) 0.6   (0.16) 0.6   (0.16) #   (†)
Croatia 479   (2.7) 21.6   (1.16) # !! (†) 0.7   (0.16) 5.0   (0.53) 15.9   (0.76) 28.3   (0.86) 29.0   (1.00) 16.4   (0.82) 4.7   (0.47) 4.3   (0.45) 0.4   (0.09)
Cyprus 424   (1.4) 43.7   (0.72) 0.3 ! (0.09) 4.3   (0.33) 15.0   (0.58) 24.1   (0.77) 26.9   (0.70) 19.3   (0.65) 8.4   (0.39) 1.8   (0.21) 1.7   (0.21) 0.1 !! (0.07)
Dominican Republic4 342   (2.9) 79.1   (1.29) 1.1   (0.25) 15.9   (0.91) 33.3   (1.06) 28.8   (1.01) 15.0   (0.91) 4.9   (0.54) 0.9   (0.22) 0.1 !! (0.06) 0.1 !! (0.06) # !! (†)
Georgia 380   (2.2) 64.4   (1.11) 0.4 ! (0.13) 7.0   (0.54) 24.2   (0.91) 32.8   (0.81) 22.9   (0.82) 10.1   (0.56) 2.4   (0.31) 0.2 ! (0.10) 0.2 ! (0.10) # !! (†)

Hong Kong (China)5
524   (2.7) 12.6   (0.76) 0.1 !! (0.05) 0.9   (0.22) 3.5   (0.41) 8.1   (0.58) 17.8   (0.72) 27.7   (0.70) 27.1   (0.80) 14.8   (0.73) 12.5   (0.62) 2.3   (0.26)
Indonesia 371   (2.6) 69.9   (1.42) 0.2 !! (0.11) 6.3   (0.65) 26.7   (1.03) 36.7   (1.11) 21.8   (0.99) 7.2   (0.77) 1.1   (0.24) 0.1 !! (0.04) 0.1 !! (0.04) # !! (†)
Jordan4 419   (2.9) 41.2   (1.40) 1.1   (0.22) 4.0   (0.50) 11.1   (0.70) 25.0   (0.85) 33.8   (1.00) 20.5   (0.92) 4.3   (0.45) 0.3 ! (0.09) 0.3 ! (0.09) # !! (†)
Kazakhstan 387   (1.5) 64.2   (0.73) 0.1 !! (0.04) 3.5   (0.32) 22.2   (0.70) 38.4   (0.69) 23.9   (0.51) 8.9   (0.35) 2.6   (0.25) 0.4   (0.08) 0.4   (0.08) # !! (†)
Kosovo 353   (1.1) 78.7   (0.65) 0.3 ! (0.09) 8.7   (0.57) 31.7   (0.81) 38.0   (1.00) 17.5   (0.65) 3.6   (0.35) 0.2 ! (0.10) # !! (†) # !! (†) #   (†)

Lebanon
353   (4.3) 67.8   (1.52) 6.3   (0.65) 16.9   (1.03) 23.0   (0.93) 21.6   (0.84) 17.4   (0.92) 10.5   (0.68) 3.7   (0.48) 0.7   (0.16) 0.7   (0.16) # !! (†)
Macao (China) 525   (1.2) 10.8   (0.53) # !! (†) 0.3 ! (0.11) 2.2   (0.25) 8.2   (0.56) 19.4   (0.75) 29.8   (0.83) 26.1   (0.73) 13.8   (0.64) 11.7   (0.60) 2.1   (0.25)
Malaysia4 415   (2.9) 45.8   (1.41) 0.2 ! (0.09) 3.6   (0.39) 14.2   (0.77) 27.9   (0.93) 31.4   (0.95) 17.9   (0.93) 4.3   (0.56) 0.5 ! (0.18) 0.5 ! (0.18) # !! (†)
Malta 448   (1.7) 35.9   (0.82) 0.7 ! (0.22) 4.8   (0.44) 11.9   (0.70) 18.5   (0.89) 23.7   (0.90) 21.7   (0.90) 13.4   (0.89) 5.3   (0.48) 4.5   (0.51) 0.9   (0.20)
Moldova, Republic of 424   (2.4) 43.0   (1.15) 0.4 ! (0.14) 3.9   (0.46) 13.5   (0.66) 25.2   (0.82) 28.0   (0.93) 20.8   (0.94) 7.2   (0.62) 1.0   (0.28) 1.0   (0.27) # !! (†)

Montenegro, Republic of
421   (1.1) 44.4   (0.69) 0.1 !! (0.06) 2.8   (0.27) 13.5   (0.53) 28.0   (0.68) 30.5   (0.64) 18.3   (0.56) 6.0   (0.40) 0.8   (0.22) 0.8   (0.22) # !! (†)
Morocco4 359   (3.1) 73.3   (1.62) 0.3   (0.07) 8.8   (0.69) 30.8   (1.30) 33.4   (0.90) 20.6   (1.21) 5.6   (0.50) 0.5   (0.13) # !! (†) # !! (†) #   (†)
North Macedonia 393   (1.1) 55.1   (0.73) 1.6   (0.22) 7.3   (0.46) 18.3   (0.79) 27.9   (1.01) 26.6   (0.82) 14.4   (0.58) 3.5   (0.34) 0.3 ! (0.15) 0.3 ! (0.16) # !! (†)
Panama4 377   (3.0) 64.3   (1.42) 1.0   (0.22) 8.4   (0.77) 23.4   (0.93) 31.5   (1.04) 23.0   (0.85) 9.9   (0.86) 2.6   (0.44) 0.2 ! (0.09) 0.2 ! (0.09) # !! (†)
Peru4 401   (3.0) 54.3   (1.34) 0.4 ! (0.12) 5.5   (0.48) 19.6   (0.90) 28.9   (0.93) 25.8   (0.69) 14.3   (0.71) 4.8   (0.54) 0.8   (0.19) 0.7   (0.19) # !! (†)

Philippines4
340   (3.3) 80.6   (1.42) 0.5   (0.14) 15.1   (0.90) 38.3   (1.06) 26.7   (0.85) 13.1   (0.74) 5.1   (0.66) 1.1   (0.30) 0.1 !! (0.04) 0.1 !! (0.04) # !! (†)
Qatar 407   (0.8) 50.9   (0.43) 1.2   (0.12) 8.5   (0.30) 17.6   (0.39) 23.6   (0.49) 23.4   (0.43) 15.8   (0.36) 7.3   (0.26) 2.6   (0.16) 2.2   (0.17) 0.4   (0.08)
Romania4 428   (5.1) 40.8   (2.15) 0.8 ! (0.26) 4.3   (0.62) 12.9   (1.01) 22.8   (1.21) 28.1   (1.05) 20.9   (1.28) 8.7   (1.02) 1.4   (0.32) 1.3   (0.30) 0.1 !! (0.05)
Russian Federation 479   (3.1) 22.1   (1.22) # !! (0.03) 1.0   (0.25) 5.6   (0.56) 15.5   (0.86) 28.1   (0.84) 28.0   (0.83) 16.4   (0.73) 5.4   (0.52) 4.8   (0.46) 0.6   (0.13)
Saudi Arabia 399   (3.0) 52.4   (1.46) 0.5   (0.16) 5.3   (0.62) 17.0   (0.87) 29.4   (0.90) 30.4   (1.06) 14.6   (0.77) 2.6   (0.31) 0.1 !! (0.07) 0.1 !! (0.07) #   (†)

Serbia
439   (3.3) 37.7   (1.52) 0.1 !! (0.08) 2.7   (0.36) 12.2   (0.82) 22.7   (0.81) 27.8   (0.85) 21.8   (0.85) 10.1   (0.69) 2.5   (0.32) 2.4   (0.31) 0.2 ! (0.07)
Singapore 549   (1.6) 11.2   (0.48) # !! (†) 0.5   (0.09) 3.0   (0.30) 7.7   (0.38) 14.2   (0.53) 22.3   (0.65) 26.4   (0.59) 25.8   (0.69) 18.5   (0.68) 7.3   (0.37)
Thailand4 393   (3.2) 59.5   (1.74) 0.1 !! (0.05) 3.6   (0.46) 20.6   (1.11) 35.3   (1.14) 26.0   (0.97) 11.6   (0.92) 2.7   (0.43) 0.2 ! (0.07) 0.2 ! (0.07) # !! (†)
Ukraine 466   (3.5) 25.9   (1.44) 0.2 ! (0.08) 1.8   (0.29) 7.2   (0.69) 16.7   (0.87) 27.7   (0.81) 28.5   (0.97) 14.5   (0.82) 3.4   (0.48) 3.2   (0.44) 0.2 !! (0.11)
United Arab Emirates 432   (2.3) 42.9   (0.81) 0.6   (0.09) 5.8   (0.33) 14.9   (0.49) 21.6   (0.44) 23.4   (0.53) 18.1   (0.50) 10.8   (0.55) 4.8   (0.28) 4.1   (0.28) 0.7   (0.11)

Uruguay
427   (2.8) 41.9   (1.28) 0.3 ! (0.10) 4.0   (0.40) 13.6   (0.76) 24.0   (0.89) 28.1   (1.10) 20.1   (0.84) 8.3   (0.69) 1.5   (0.25) 1.5   (0.24) 0.1 !! (0.06)
Vietnam9 ---   (†) ---   (†) ---   (†) ---   (†) ---   (†) ---   (†) ---   (†) ---   (†) ---   (†) ---   (†) ---   (†) ---   (†)
---Not available.
†Not applicable.
#Rounds to zero.
!Interpret data with caution. The coefficient of variation (CV) for this estimate is between 30 and 50 percent.
!!Interpret data with caution. Estimate could be unstable because the standard error represents more than 50 percent of the estimate.
1 Program for International Student Assessment (PISA) scores are reported on a scale from 0 to 1,000.
2 To reach a particular proficiency level, a student must correctly answer a majority of items at that level. Students were classified into reading literacy levels according to their scores. Exact cut scores are as follows: below level 1c (a score less than 189.33); level 1c (a score of at least 189.33 but less than 262.04); level 1b (a score of at least 262.04 but less than 334.75); level 1a (a score of at least 334.75 but less than 407.47); level 2 (a score of at least 407.47 but less than 480.18); level 3 (a score of at least 480.18 but less than 552.89); level 4 (a score of at least 552.89 but less than 625.61); level 5 (a score of at least 625.61 but less than 698.32); and level 6 (a score of at least 698.32).
3 Refers to the mean of the data values for all Organization for Economic Cooperation and Development (OECD) countries, to which each country contributes equally, regardless of the absolute size of the student population of each country.
4 At least 50 percent but less than 75 percent of the 15-year-old population is covered by the Program for International Student Assessment (PISA) sample.
5 Did not meet 85 percent threshold for school participation. However, data are considered to be largely comparable with data from other countries or education systems.
6 Did not meet 80 percent threshold for student participation. However, data are considered to be largely comparable with data from other countries or education systems.
7 Although Spain's PISA 2018 data met international technical standards, its reading literacy data show unusual student response behaviors that prevent these data from being reported at this time.
8 Less than 50 percent of the 15-year-old population is covered by the PISA sample.
9 Although Vietnam participated in PISA 2018, technical problems with its data prevent results from being included in this table.
NOTE: Detail may not sum to totals because of rounding.
SOURCE: Organization for Economic Cooperation and Development (OECD), Program for International Student Assessment (PISA), 2018. (This table was prepared December 2019.)

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