20. Belgium
Average Score: 503
Reading Score: 499
Math Score: 507
Science Score: 502
While great importance has been given to education in Belgium, the federal government is only minimally involved, with three communities, namely the French, German and Flemish, managing their own school system. However, the education system is not flawless, and a study revealed in 2007 that teachers actively left their jobs due to a threat of violence.
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