There are higher proportions of males than females with no qualifications in all age groups except for the oldest age group of 60 to 64.
Mae cyfrannau uwch o wrywod nag o fenywod sydd heb unrhyw gymwysterau ym mhob grŵp oedran, ac eithrio’r grŵp oedran hynaf, sef 60 i 64.