The Canadian Consumer Price Index (based on a value of 100 in 1971) rose from 97.2 in 1970 to 113.5 in 1980. What was the (equivalent) annual rate of inflation in the decade of the 1970s?

Annual Rate of Inflation

The percentage increase in the price of goods and services over one year, reducing purchasing power.

Canadian Consumer Price Index

A measure that examines the weighted average of prices of a basket of consumer goods and services, such as transportation, food, and medical care in Canada.