A worker rotates through five working stations throughout his normal 8 hr work day as shown in the table below. Calculate the 8 h continuous rating level, , for the worker over his typical working day.

'n Werker roteer deur vyf werkstasies in 'n normale 8-ure werksdag soos aangetoon in die tabel hier onder. Bereken die 8 h kontinue klankdrukpeil, ,  vir 'n tipiese werksdag.