The highest number of tests authorised in a single calendar day was on 25 August 2021, where 21,497 tests were authorised in NHS Wales and non-NHS Wales laboratories.
Y nifer mwyaf o brofion a awdurdodwyd mewn un diwrnod calendr oedd ar 25 Awst 2021, pan awdurdodwyd 21,497 o brofion yn labordai GIG Cymru a labordai heblaw rhai GIG Cymru.