Od. The 1970s and early 2000s. QUESTION 18 Suppose the Consumer Price Index increases from 220 to 264 over the course of a year. The annual inflation rate is O a. 12.5% O b. 20% O c. 25% O d. 125% QUESTION 19 Inflation in a given year is measured by a. The level of the consumer price index (CPI). O b. The level of the GDP price index. O c. The percentage change in the consumer price index