Classification of highest educational attainment
- 1 - Less than secondary school graduation (highest)
- 1.1 - Grade 8 or equivalent or lower (highest)
- 1.1.1 - Kindergarten or never attended school, or equivalent (highest)
- 1.1.2 - Grades 1-4, or equivalent (highest)
- 1.1.3 - Grades 5-8, or equivalent (highest)
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