| Nifer o gyfrifon cofrestredig yn yr Ariannin | ||||
| Oedran | Gwryw | Benyw | Cyfanswm | |
| 13-15 | 370,000 | 420,000 | 790,000 | |
| 16-25 | 5,000,000 | 5,000,000 | 10,000,000 | |
| 26-35 | 3,800,000 | 3,800,000 | 7,600,000 | |
| 36-45 | 2,400,000 | 2,600,000 | 5,000,000 | |
| 46-55 | 1,300,000 | 1,500,000 | 2,800,000 | |
| 56-65+ | 1,000,000 | 1,500,000 | 2,500,000 | |
| 13-65+ | 13,870,000 | 14,820,000 | 28,690,000 | |
| Nifer o gyfrifon yn yr Ariannin sydd wedi ticio'r blwch Cymraeg | ||||
| Oedran | Gwryw | Benyw | Cyfanswm | |
| 13-15 | 20 | 20 | 40 | |
| 16-25 | 1,100 | 450 | 1,550 | |
| 26-35 | 180 | 110 | 290 | |
| 36-45 | 90 | 50 | 140 | |
| 46-55 | 30 | 20 | 50 | |
| 56-65+ | 70 | 40 | 110 | |
| 13-65+ | 1,490 | 690 | 2,180 |
