Page 10 - annual report 2021, "Company supports employee wellbeing through pandemic, launching Employee Assistance Fund and providing 24-hour access to virtual GP, Employee Assistance Fund, free subscription to Headspace app and stand-down half-days for 3,000 staff and partners". 5000 employee / 3000 = 60%
Unsure if this relates to the question as there's no information provided by the company to state this was due to working incidents etc.