Read the definition before the number
An economic indicator is useful only when you understand what it measures, how often it is updated and whether it is revised. GDP, inflation, unemployment, interest rates, trade balances and population statistics answer different questions and should not be interpreted as interchangeable measures of economic health.
Compare like with like
When comparing countries, check the period, currency, units, methodology and whether figures are nominal, real, seasonally adjusted or per capita. A percentage change can tell a different story from an absolute value.
Use primary and established sources
Official statistical agencies, central banks and international institutions are generally the best starting point. The external resources below are provided to help readers locate source data; conclusions and decisions should be based on the latest official release and its methodology notes.