Health Measures at UK Borders

I listened very carefully to the Home Secretary’s earlier answer to the Chair of the Select Committee, my right hon. Friend the Member for Normanton, Pontefract and Castleford (Yvette Cooper), and she did not answer a rather direct and important question, which she will have estimates for, because this will be a policy based on evidence. How many people does the Home Secretary expect each day to have to go into quarantine in a hotel, and how many people entering the UK each day does she estimate will not have to go into quarantine under these new measures?