Cost of Living Adjustment For each year following the Initial Term, unless the parties shall otherwise agree and provided that the service mix and volumes remain consistent as previously provided in the Initial Term, the total fee for all services shall equal the fee that would be charged for the same services based on a fee rate (as reflected in a fee rate schedule) increased by the percentage increase for the twelve-month period of such previous calendar year of the CPI-W (defined below) or, in the event that publication of such index is terminated, any successor or substitute index, appropriately adjusted, acceptable to both parties. As used herein, “CPI-W” shall mean the Consumer Price Index for Urban Wage Earners and Clerical Workers (Area: Boston-Brockton-Nashua, MA-NH-ME-CT; Base Period: 1982-84=100), as published by the United States Department of Labor, Bureau of Labor Statistics.