Statistics Glossary
Definitions and methodology for 58 statistical indicators used across WorldStats.
Demographics
Population people Total population based on the de facto definition, counting all residents regardless of legal status or citizenship.… Population Growth Rate % per year Annual population growth rate based on exponential growth model using midyear populations.… Birth Rate per 1,000 people Crude birth rate per 1,000 midyear population.… Death Rate per 1,000 people Crude death rate per 1,000 midyear population.… Life Expectancy at Birth years The number of years a newborn would live if prevailing mortality patterns remain unchanged.… Median Age years The age at which half the population is older and half younger.… Urban Population % of total People living in urban areas as a percentage of total population.… Population Density people per km² Midyear population divided by land area in square kilometers.… Fertility Rate births per woman Total fertility rate: average number of children a woman would bear if she lived to the end of her childbearing years.… Population Ages 0-14 % of total Population ages 0 to 14 as a percentage of the total population.… Population Ages 65+ % of total Population ages 65 and above as a percentage of the total population.… Net Migration people Net number of migrants during the period, calculated as immigrants minus emigrants.…
Economy
GDP (current US$) US$ Gross domestic product at purchaser prices, current US dollars.… GDP per Capita US$ GDP divided by midyear population, current US dollars.… GDP Growth Rate % per year Annual percentage growth rate of GDP at market prices, constant local currency.… GDP per Capita (PPP) international $ GDP per capita based on purchasing power parity, current international dollars.… Inflation Rate (CPI) % per year Annual percentage change in consumer price index.… Unemployment Rate % of labor force Percentage of the labor force that is without work but available for and seeking employment.… GNI per Capita (Atlas) US$ Gross national income per capita using the Atlas method, current US dollars.… Average Monthly Earnings international $ Average gross monthly earnings of employees, adjusted using purchasing power parity for cross-country comparison.… Net Earnings After Tax € PPS Annual net earnings after income tax and employee social security contributions for a single worker without children ear… Tax Wedge % of labour cost Share of total labour costs taken by income tax and social security contributions for a single worker without children e… Trade (% of GDP) % of GDP Sum of exports and imports of goods and services as a share of GDP.… Government Debt (% of GDP) % of GDP Central government debt as a percentage of GDP.… Poverty Rate ($2.15/day) % of population Percentage of population living below $2.15 per day (2017 PPP).… Gini Index index (0-100) Measure of income inequality. 0 = perfect equality, 100 = perfect inequality.…
Health
Infant Mortality Rate per 1,000 live births Deaths of infants under one year per 1,000 live births.… Under-5 Mortality Rate per 1,000 live births Probability of dying between birth and age 5 per 1,000 live births.… Health Expenditure (% GDP) % of GDP Current health expenditure as a percentage of GDP.… Hospital Beds per 1,000 people Hospital beds per 1,000 people, including inpatient and rehabilitation beds.… Physicians per 1,000 people Number of physicians (generalists and specialists) per 1,000 people.… HIV Prevalence % of population (15-49) Prevalence of HIV as a percentage of population ages 15-49.… Obesity Rate (Adults) % of adults Prevalence of obesity among adults (BMI >= 30), age-standardized.… NCD Mortality (30-70) % probability Probability of dying between ages 30 and 70 from cardiovascular disease, cancer, diabetes, or chronic respiratory diseas…
Education
Literacy Rate (Adults) % of adults Percentage of people ages 15 and above who can read and write.… School Enrollment (Primary) % gross Gross enrollment ratio for primary education, regardless of age.… School Enrollment (Secondary) % gross Gross enrollment ratio for secondary education.… School Enrollment (Tertiary) % gross Gross enrollment ratio for tertiary (higher) education.… Education Expenditure (% GDP) % of GDP Government expenditure on education as a percentage of GDP.… Mean Years of Schooling years Average number of years of education received by people ages 25 and older.…
Environment
CO₂ Emissions Mt CO₂e Carbon dioxide emissions in kilotons from burning fossil fuels and cement manufacturing.… CO₂ Emissions per Capita t CO₂e/capita Carbon dioxide emissions per person excluding LULUCF, using IPCC AR5 GWP factors. Source: EDGAR Community GHG Database.… Forest Area % of land area Land under natural or planted stands of trees of at least 5 meters in height.… Renewable Energy Consumption % of total Share of renewables in total final energy consumption.… Air Pollution (PM2.5) µg/m³ Population-weighted mean annual exposure to PM2.5 air pollution.… Access to Clean Water % of population Percentage of population using safely managed drinking water services.… Access to Sanitation % of population Percentage of population using safely managed sanitation services.…
Geography
Military & Security
Military Expenditure (% GDP) % of GDP Military expenditure as a share of GDP, including the armed forces, ministries of defense, and paramilitary forces.… Armed Forces Personnel % of labor force Total armed forces personnel as a percentage of the total labor force.… Intentional Homicide Rate per 100,000 people Intentional homicides per 100,000 people.…
Infrastructure
Internet Users % of population Individuals using the Internet as a percentage of population.… Mobile Subscriptions per 100 people Mobile cellular subscriptions per 100 people.… Access to Electricity % of population Percentage of population with access to electricity.… Fixed Broadband Subscriptions per 100 people Fixed broadband subscriptions per 100 people.…
Energy
Energy Use per Capita kg of oil equivalent Primary energy use per capita in kilograms of oil equivalent.… Electricity Consumption per Capita kWh Electric power consumption per capita in kilowatt-hours.… Renewable Electricity Output % of total Electricity production from renewable sources as a percentage of total.…
Frequently Asked Questions
58 indicators across demographics, economics, health, education, environment, energy, and security
indicator data data is sourced from World Bank and WHO, using indicator code various.