Quarterly statistics are presented from October to December 2016 (the first quarter when HCWP was introduced) to the quarter October to December 2020.
Cyflwynir ystadegau chwarterol o fis Hydref i fis Rhagfyr 2016 (y chwarter cyntaf pan gyflwynwyd y Rhaglen) hyd at y chwarter o fis Hydref i fis Rhagfyr 2020.