Getting current, authoritative economic indicators for a country (or a set of countries) is one of the most common research needs within GPS, and a dozen or so publications here answer most of the recurring queries. Far and away our top two statistical publishers are the World Bank and the International Monetary Fund, which feature suites of key data products.
National statistical offices, central banks, and government ministries in most countries offer varying amounts of official country data online. Use these lists to identify sites across the globe.