We use this information to make the website work as well as possible and improve our services.
You’ve accepted all cookies. You can change your cookie settings at any time.
Data a dadansoddiadau o Gyfrifiad 2021
Cyswllt: Trevor Fenton
Dyddiad y datganiad: 10 December 2014
Cyhoeddiad nesaf: 09 December 2015
ID y gyfres: C4GE
Beth yw hyn?
Custom time period
Download full time series as:
Download filtered time series as: