Employees Super- visors Management teams <30 years 12.2 3.4 0 13.5 2.4 0 13.8 3 0 14 1.9 0 30 –50 years 47.4 50.3 52 48.1 53.8 54.7 48.8 51.3 52.4 49.1 53.4 55.7 >50 years 40.4 46.3 48 38.4 43.8 45.3 37.4 45.5 47.6 36.9 44.7 44.3 1) Management teams at group, business area and site levels.