PlainCountries publishes country rankings across more than 47 development indicators, drawing every observation from primary sources — the World Bank's World Development Indicators (WDI), the WHO Global Health Observatory (GHO), ILO ILOSTAT (wages and working hours), OECD.Stat (member-only health and inequality series), and USGS Mineral Commodity Summaries. Each ranking page lists every country that has a non-null observation for the indicator's most recent reporting year, sorted from highest to lowest. Ties break alphabetically by country name.

How to read a ranking. The top of every ranking page shows the indicator's full title, the unit of measurement, the latest reporting year, and the number of countries with data. Below that, a ranked table lists each country with its raw value, the year of observation, and the rank. We do not interpolate or impute missing values — when a country has no observation for the latest year, it does not appear in that year's ranking. This keeps rankings structurally honest at the cost of variable coverage.

Topics covered. 8 development topics — Demographics (population, fertility, density), Economy (GDP, income, inflation, trade), Health (life expectancy, mortality, healthcare access), Education (enrolment, attainment, literacy), Environment (emissions, energy, biodiversity), Infrastructure (internet, electricity, transport), Social (poverty, inequality, employment), and Labor & Wages (working hours, mean wages, sectoral employment) — anchor the indicator taxonomy. The classification follows the World Bank's WDI topic tree with minor consolidations to match how data analysts actually navigate the indicators.

Reporting cadence. World Bank WDI refreshes annually in September with revisions to prior years; WHO GHO follows the Global Burden of Disease cycle and updates cause-of-death series at irregular intervals; ILO ILOSTAT publishes quarterly with monthly partial updates; OECD.Stat refreshes member-country health and inequality series annually; USGS releases mineral production estimates each January for the prior year. Every ranking row carries its source agency and observation year so you can tell at a glance whether a number is current or aged.

Why coverage varies. Not every country reports on every indicator. Small island states, micro-economies, conflict-affected countries, and territories often skip series with low reporting compliance — particularly health surveys, household income, and air-quality measurement. Where coverage is sparse, rankings still rank the countries that did report, but the global picture is incomplete. Our methodology page lists every indicator with its coverage ratio (countries with data divided by 217).

Licence. World Bank, WHO, and ILO data are published under Creative Commons Attribution 4.0 (CC BY 4.0) and may be reused with attribution. OECD.Stat data is licensed under the OECD terms and conditions. USGS data is in the public domain. PlainCountries adds value through aggregation, ranking, comparison, and cross-referencing — but every underlying figure traces back to an official release. For full per-indicator documentation see the methodology page; to dive into a specific theme, browse our data guides.