This is the case for more than 25% of teachers in Ireland and Portugal, 45% in Spain and 55% in Italy.  http://dx.doi.org/10.1787/607856444110
Iirimaal ja Portugalis koges seda probleemi 25% õpetajatest, Hispaanias 45% ja Itaalias 55%.  http://dx.doi.org/10.1787/607856444110