Figure 4: Percentage of pupils achieving the Key Stage 3 CSI, by free school meal (FSM) eligibility, 2005 to 2023
Ffigur 4: Canran y disgyblion a gyflawnodd y DPC Cyfnod Allweddol 3, yn ôl hawl i brydau ysgol am ddim (PYD), 2005 i 2023