Source: Percentage change between the first and second estimates, by month transaction was effective (Open Document Spreadsheet, 114 KB) (includes data back to April 2018, not presented above)
Ffynhonnell: Nifer wythnosol y trafodiadau y'i cyflwynwyd i Awdurdod Cyllid Cymru (Taenlen Dogfen Agored, 120 Kb) (yn cynnwys data yn ôl Ebrill 2018, heb ei gyflwyno uchod)