The highest number of tests authorised in a single calendar day was on 16 September 2021, where 30,759 tests were authorised in NHS Wales and non-NHS Wales laboratories.
Y nifer mwyaf o brofion a awdurdodwyd mewn un diwrnod calendr oedd ar 16 Medi 2021, pan awdurdodwyd 30,759 o brofion yn labordai GIG Cymru a labordai heblaw rhai GIG Cymru.