They also have high rates of illiteracy: in 2010, 34.5% of indigenous women were illiterate (SEP, 2015). However, these rates have been improving across cohorts: by 2015, only 1.2% of women aged 15 to 29 were illiterate (INMUJERES data provided to OECD). Mexico also underperforms in reading: Mexico’s average score is 72 points below the OECD average. The percentage of low achievers among boys and girls in Mexico is also twice as high as the average percentage in the OECD across subjects, but the figures may mask even greater differences, many disadvantaged 15-year-olds leave school and are thus not captured by these statistics.