Year Reading Mathematics Science
2000 22.7 19.0 ..
2003 20.5 23.0 14.8
2006 20.6 21.2 15.0
2009 17.6 22.3 14.2
2012 19.7 28.1 18.0
2015 27.5 27.7 26.0
2018 25.3 25.7 24.1

Footnotes

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Source: Organisation for Economic Co-operation and Development (OECD).
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