This likely reflects a coronavirus (COVID-19) pandemic effect, as fewer students would have been staying at a term-time address than would otherwise have been expected.
Mae hyn fwy na thebyg yn adlewyrchu effaith pandemig y coronafeirws (COVID-19), gan y byddai llai o fyfyrwyr na’r disgwyl fel arall wedi aros mewn cyfeiriad amser tymor.