The number of employees with doctor-certified sickness absence on a specific reference date adjusted for partial sick leave. This means that a partial sick leave of 80 per cent counts as 0.8 and not as one. From 2015 the reference date is Tuesday in the week covering 16th day in the last months of the quarter. We also compute the rate of this figure by dividing by total number of employees without taking into account of part-time jobs.