The highest number of tests authorised in a single calendar day was on 1 September 2021, where 22,682 tests were authorised in NHS Wales and non-NHS Wales laboratories.
Y nifer mwyaf o brofion a awdurdodwyd mewn un diwrnod calendr oedd ar 1 Medi 2021, pan awdurdodwyd 22,682 o brofion yn labordai GIG Cymru a labordai heblaw rhai GIG Cymru.