The Global Hunger Index (GHI) is a tool used to measure and track hunger at the global, regional, and national levels. The report, published annually in October, describes the prevalence of hunger and undernutrition in individual countries and gauges both progress and setbacks in the global fight against hunger. GHI scores can be used to rank countries, and current results can be compared with past outcomes. An interactive map enables users to visualize data across different years and zoom into specific regions or countries.