Primary school class sizes also exceeded the EU average, which coincides with last week's news that Kildare has the largest class size in the country
Ireland has come bottom of the table in a new report on investment in education.
The Government spent 2.8 per cent of GDP on education in 2021 compared to the average of 5.7 per cent according to research from the OECD.
Class sizes at primary level also exceeded the EU average.
This follows last week's publication of the National School Annual Census, which revealed Kildare has the largest class size in the country with an average of 24 pupils per class.

Nearly One In Three Women Face Barriers To Free Contraception Scheme
David Mongey Appointed Chair of Irish National Stud Board
Only 25 Apprentice Plasterers Nationally, Report Finds
MEP Criticises Increased Broadcast Levy For Stations Like Kfm
Taoiseach To Attend EU Member State Meeting In Cyprus
Born Clothing Announces Closure Of All Irish Stores
Man Dies After Being Struck By Bus In North Dublin
Ryder Cup Ticket Rush As Irish Fans Get First Access to Adare 2027