To adjust for these differences, non-response weights were calculated, using RIM (random iterative method), and applied to bring the survey profile in line with the sample.
I addasu ar gyfer y gwahaniaethau hyn, cyfrifwyd pwysoliadau heb ymateb, gan ddefnyddio RIM (dull iteru ar hap), a’i ddefnyddio i sicrhau bod proffil yr arolwg yn cyd-fynd â’r sampl.