In each of these cases the Board’s analysis turned on the number of five-day, four-day, three-day etc. weeks worked by a claimant.  In Norampac, for example, the Board reported that the claimant’s payroll showed 29 “five-day” weeks, 13 “four-day” weeks and 4 “three-day weeks” while the balance of the payroll was absence due to disability or vacation. 