Introduced a summary of the key indicators to the start of the publication, including a detailed explanation of the new key indicators and placed them into context in terms of grade equivalents.
Cyflwyno crynodeb o'r dangosyddion allweddol hyd at ddechrau'r cyhoeddiad, gan gynnwys esboniad manwl o'r mesurau allweddol newydd a'u rhoi mewn cyd-destun o ran cyfwerth â graddau.