117. The Pension Index for the year 1967 is the average of the Consumer Price Index for Canada, published by Statistics Canada under the authority of the Statistics Act (Revised Statutes of Canada, 1985, chapter S-19), for each month in the twelve-month period ending June 30 1966.
The Pension Index for each of the years 1968 to 1973 shall be equal to the lesser of either(a) for the years 1968 to 1972, 1.02 times the Pension Index for the preceding year, and
(b) for the year 1973, 1.03 times the Pension Index for the preceding year,
or the average of the Consumer Price Index for Canada for each month in the twelve-month period ending June 30 in the preceding year.
The Pension Index for the year 1974 shall be computed, in prescribed manner, as the average of the Consumer Price Index for Canada for each month in the sixteen-month period ending October 31 1973.
The Pension Index for the year 1975 and each subsequent year shall be computed, in prescribed manner, as the average of the Consumer Price Index for Canada for each month in the twelve-month period ending October 31 in the preceding year.
Nevertheless, for any year for which the computation contemplated in this section yields a Pension Index less than 1.01 times that for the preceding year, the Pension Index shall be taken to be the Pension Index for the preceding year.