OECD (2016), "Graph B1.5a - Changes in the number of students, expenditure on educational institutions and expenditure per student in primary, secondary and post-tertiary non-tertiary education (2008, 2013): Index of change between 2008 and 2013 (2008 = 100, 2013 constant prices)", in Education at a Glance 2016: OECD Indicators, OECD Publishing, Paris, https://doi.org/10.1787/eag-2016-graph98-en.