Inflation - Country rankings:
The average for 2017 was 3.9 percent.The highest value was in Angola: 31.7 percent and the lowest value was in Saudi Arabia: -0.8 percent. Below is a chart for all countries where data are available for: Inflation.
Inflation: percent change in the Consumer Price Index, 2017
(percent, Source: The World Bank, TheGlobalEconomy.com)