One example is the Labour Force Survey (LFS), which has a large sample in Wales (around 20,000 households), and focuses on labour market activity and qualifications.
Un enghraifft yw’r Arolwg o’r Llafurlu (LFS), sydd â sampl fawr yng Nghymru (tua 20,000 o aelwydydd), ac sy’n canolbwyntio ar weithgarwch y farchnad lafur ac ar gymwysterau.