Considerable differences in the presence of different types of staff across school systems …

„There are considerable differences in the presence of different types of staff across school systems. There are more than two pedagogical support staff per ten teachers in Alberta (Canada), Chile, Iceland, New Zealand and Sweden, but there is less than one pedagogical support staff position for every twenty teachers in Austria, Belgium, Colombia and Italy.“
OECD (Hrsg.), Working and Learning Together (2019), S. 41.