ECB Monthly Bulletin for October: https://www.ecb.europa.eu/pub/pdf/other/art1_mb201410_pp49-68.en.pdf has a nifty chart, mapping proportion of younger people who are not in employment, education or training:
So guess what... Ireland has 3rd highest inactive population of younger people as proportion of total population - in other words, those who are neither unemployed, nor in education or training. And Ireland had the 3rd highest inactive population of the younger people back in 2007 too.
What on earth are these young people doing?! Working in the black economy?