Data Sources & Methodology

Learn about our data sources, calculation methods, and how we process country statistics.

Exchange Rates

Source

European Central Bank, Federal Reserve

Update Frequency

Daily

Calculation Method

Exchange rates are updated daily using official central bank rates and market data. All monetary values are converted to USD for comparison.

Data Sources

Basic Info

Source: World Bank, CIA World Factbook, United Nations
Description: Basic country information including population, GDP, area, and capital cities are sourced from official databases and regularly updated statistics.
Metrics:
  • Population
  • GDP
  • GDP per capita
  • Area
  • Capital
  • Official language
  • Currency
  • Government type

Economic

Source: World Bank, IMF, OECD
Description: Economic indicators including life expectancy, literacy rates, internet usage, unemployment rates, HDI, and Gini coefficient are compiled from international organizations.
Metrics:
  • Life expectancy
  • Literacy rate
  • Internet users percentage
  • Unemployment rate
  • Human Development Index (HDI)
  • Gini coefficient

Military

Source: SIPRI Military Expenditure Database, IISS Military Balance
Description: Military data including personnel, equipment, and defense budgets are sourced from defense research institutes and official military reports.
Metrics:
  • Active personnel
  • Reserve personnel
  • Defense budget
  • Tanks
  • Armored vehicles
  • Artillery systems
  • Rocket projectors

Airforce

Source: IISS Military Balance, FlightGlobal
Description: Air force capabilities including aircraft types and numbers are compiled from military aviation databases and defense reports.
Metrics:
  • Total aircraft
  • Fighters
  • Attack aircraft
  • Transport aircraft
  • Trainer aircraft
  • Helicopters
  • Attack helicopters

Navy

Source: IISS Military Balance, Jane's Fighting Ships
Description: Naval assets including ships and submarines are sourced from maritime defense databases and naval intelligence reports.
Metrics:
  • Total naval assets
  • Aircraft carriers
  • Destroyers
  • Frigates
  • Corvettes
  • Submarines
  • Patrol vessels
  • Mine warfare vessels

Energy

Source: IEA, BP Statistical Review, World Energy Council
Description: Energy production and consumption data are compiled from energy research organizations and industry reports.
Metrics:
  • Electricity production
  • Renewable percentage
  • Oil production
  • Natural gas production
  • Nuclear power plants

Infrastructure

Source: World Bank, CIA World Factbook
Description: Infrastructure data including transportation networks are sourced from government reports and international development organizations.
Metrics:
  • Airports
  • Railways
  • Roadways
  • Ports

Education

Source: UNESCO, World Bank
Description: Education statistics including expenditure and enrollment rates are compiled from educational research organizations and government reports.
Metrics:
  • Education expenditure percentage
  • Universities
  • Primary enrollment
  • Secondary enrollment

Healthcare

Source: WHO, World Bank
Description: Healthcare metrics including expenditure and medical resources are sourced from health organizations and government health departments.
Metrics:
  • Healthcare expenditure percentage
  • Physicians per 1000
  • Hospital beds per 1000
  • Life expectancy by gender

Religion

Source: Pew Research Center, CIA World Factbook
Description: Religious demographics are compiled from demographic research organizations and government census data.
Metrics:
  • Religious composition percentages

Cost Of Living

Source: Numbeo, EIU Cost of Living Survey, Mercer Cost of Living Survey
Description: Cost of living indices and specific costs are calculated based on consumer price surveys and purchasing power parity data.
Metrics:
  • Cost of living index
  • Rent index
  • Groceries index
  • Restaurant index
  • Local purchasing power
  • Meal costs
  • Monthly rent
  • Utilities
  • Internet
  • Transportation

Data Update Frequencies

Annual Updates

Quarterly Updates

Daily Updates

Methodology Notes

Data Processing

  • Currency Conversion: Not specified
  • Per Capita Calculations: Not specified
  • Rounding Rules: Not specified

Data Inclusion

  • Data Quality: Not specified
  • Missing Data: Not specified
  • Historical Data: Not specified