The number of people aged 16 to 64 years old is projected to increase by 5.6% to 1,998,000 between mid-2021 and mid-2031.
Amcanestynnir y bydd nifer y bobl 16 i 64 oed yn cynyddu 5.6% i 1,998,000 rhwng canol 2021 a chanol 2031.