Data Sources and Methodology
Review indicator sources, update methods, calculations and limitations.
Country economic data is primarily retrieved through the World Bank Indicators API. Each indicator retains its World Bank code so readers can verify the original source.
Current indicators
- NY.GDP.MKTP.CD: GDP in current US dollars
- NY.GDP.MKTP.KD.ZG: real GDP annual growth
- NY.GDP.PCAP.CD: GDP per capita in current US dollars
- FP.CPI.TOTL.ZG: consumer-price inflation
- SL.UEM.TOTL.ZS: unemployment rate
- SP.POP.TOTL: total population
- NE.EXP.GNFS.ZS: exports as a share of GDP
- NE.IMP.GNFS.ZS: imports as a share of GDP
Updates and caching
The site periodically refreshes public endpoints and uses a local cache for reliability. Public statistics often update annually or on a publication schedule, so the latest data year may be earlier than the current date.
Calculations
Trend statements are computed only from displayed source values. Changes in rate indicators are expressed in percentage points; other indicators may use percentage change. Finance calculators run locally in the browser using the formulas documented on each page.
Limitations
Statistical years, definitions, revision schedules and availability vary by country. Cross-country comparisons should be read together with the indicator definition, year and methodology.