You're correct that this was our second audit. The first audit covered March to June of 2020.
Where we did note some improvements from the Public Health Agency was in its ability to contact travellers to determine whether or not they were quarantining. In the first audit, we found that they were unable to follow up with 66% of travellers. That improved to only 37% of travellers.
I would highlight two things there. At the beginning of the pandemic, very few people were entering the country, so even though the percentage has reduced in the second audit, the number of travellers who are coming in has dramatically increased. It isn't a huge success story that about a third of population can't be followed up with.