Charmgen Market Atlas retrieves observations from the World Bank Indicators API and preserves the reported year for every value. We never present a missing observation as zero.
The change figure compares the latest available observation with the closest available observation at least five years earlier. It is a descriptive calculation, not a forecast. Different indicators may have different latest years, definitions and revision schedules.
Country comparisons are starting points for research. National averages can hide differences within a country and should not be used as personal financial or investment advice.