The pooling of four years of National Survey data allows for increased granular analysis of some protected characteristics and associated characteristics by National Indicators.
Mae cyfuno pedair blynedd o ddata'r Arolwg Cenedlaethol yn galluogi dadansoddiad manylach o rai nodweddion gwarchodedig a nodweddion cysylltiedig drwy Ddangosyddion Cenedlaethol.