Full text
the ratio that the average for the 12-month period ending on April 30 in that preceding year of the Average Weekly Earnings for each month in that 12-month period bears to the average for the 12-month period ending 12 months prior to April 30 of that preceding year of the Average Weekly Earnings for each month in that 12-month period ending 12 months prior to April 30 of that preceding year.