These estimates are only available annually and can only be disaggregated by gender, so it is necessary to supplement them with other sources of NEET statistics.
Mae'r amcangyfrifon hyn ar gael yn flynyddol yn unig ac nid oes modd eu dadagregu ond yn ôl rhyw, felly mae angen eu hatodi â ffynonellau eraill o Ystadegau NEET.