Around a third of employers in Wales reported that they had any employees with both qualifications and skills more advanced than were required for their current job role (34%).
Dywedodd oddeutu traean o gyflogwyr yng Nghymru bod ganddynt weithwyr gyda chymwysterau a sgiliau oedd yn fwy datblygedig nag oedd ei angen ar gyfer rôl eu swydd gyfredol (34%).