Where data has continued to be available, the trends understandably look very different this year for some topics, and this is more pronounced for some groups in society than others.
Lle mae data wedi parhau i fod ar gael, wrth reswm, mae’r tueddiadau’n edrych yn wahanol iawn eleni ar gyfer rhai pynciau, ac mae hyn yn fwy amlwg i rai grwpiau mewn cymdeithas nag eraill.