We also included fire and rescue services, as they are covered by the requirements of the Localism Act 2011 to produce low to high pay ratios.
Fe wnaethom hefyd gynnwys gwasanaethau tân ac achub, gan eu bod yn dod o dan ofynion Deddf Lleoliaeth 2011 i gynhyrchu cymarebau rhwng y tâl isaf ac uchaf.