„In terms of expenditure as a percentage of GDP, New Zealand, Norway, Portugal and the United Kingdom spend the most on primary, secondary and post-secondary non-tertiary education (4.7 % of GDP or more), while in Indonesia, Latvia and the Russian Federation, expenditure on those levels accounts for less than 2.5 % of GDP.“
OECD (Hrsg.), „Education at a Glance 2016“ (2016), S. 200
Österreichs Anteil: 3,2 %