A lot of work has gone on since November 2018 to determine how this new measure could be recorded and to put in place the means of reporting it.
Cafodd llawer o waith ei gyflawni ers mis Tachwedd 2018 i benderfynu sut y gellid cofnodi gwybodaeth am y mesur newydd hwn ac i roi ar waith y system adrodd ar ei gyfer.