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Population-weighted average ozone (O₃) concentrations in parts per billion (ppb). Local concentrations of ozone are recorded and estimated at a 11x11km resolution. These values are subsequently weighted by population-density for calculation of nation-level average concentrations.
Daily intake of antidepressants per 1,000 people, calculated as the 'defined daily dose'. This enables us to compare overall levels of drug consumption, accounting for the fact that different antidepressants have different recommended dosages.
The emissions-weighted carbon price from carbon taxes is calculated for the whole economy by multiplying each sector's (e.g. electricity, or road transport) carbon price by its contribution to a country's carbon dioxide emissions.
Share of men aged 16-65 years who can apply multiple steps involving calculation with common decimals, percentages, and fractions; simple measurement and spatial representation; and interpretation of relatively simple data and statistics in texts, tables, and graphs.
Share of women aged 16-65 years who can apply multiple steps involving calculation with common decimals, percentages, and fractions; simple measurement and spatial representation; and interpretation of relatively simple data and statistics in texts, tables, and graphs.
Estimated urban area by region or country, measured in square kilometers (km²) is calculated by dividing the total urban population of a country in a given year by the average urban densities in that country during the same year.
The emissions-weighted carbon price in emissions trading systems (ETS) is calculated for the whole economy by multiplying each sector's (e.g. electricity, or road transport) carbon price by its contribution to a country's carbon dioxide emissions.
Agricultural value added per worker is calculated by dividing the amount of economic value generated from farming by the number of people who work in agriculture. GDP per capita is adjusted for inflation and differences in living costs between countries.
Gavi provides financial and expert knowledge support for countries to access new and underused vaccines. Support is given to countries with a Gross National Income per capita of less than US$1,810, calculated using the World Bank Atlas Method, over the past three years.
The Global Hunger Index tries to capture the multidimensional nature of hunger by calculating an index score from four key hunger indicators. It is measured on a 100-point scale where 0 is the best score (no hunger) and 100 is the worst.
Estimated annual number of deaths attributed to unsafe sanitation per 100,000 people. This is calculated as the 'attributable burden'. Attributable burden represents the reduction in deaths if a population's exposure had shifted from unsafe to adequate sanitation facilities.
The poverty gap index is a poverty measure that reflects both the prevalence and the depth of poverty. It is calculated as the share of population in poverty multiplied by the average shortfall from the poverty line (expressed as a % of the poverty line).
Agricultural value added per worker is calculated by dividing the amount of economic value generated from farming, forestry and fishing by the number of people who work in these sectors. This data is expressed in US dollars. It is adjusted for inflation but does not account for differences in living costs between countries.
The growth rate is calculated between two household surveys – the most recent survey available in 2024 and a survey falling approximately five years earlier. In countries below the dotted line, income or consumption growth is higher for the poorest 40% of the population than the national average.
Arable land needed to produce a fixed quantity of crops is calculated as arable land divided by the crop production index (PIN). The crop production index (PIN) here is the sum of crop commodities (minus crops used for animal feed), weighted by commodity prices. This is measured as an index relative to 1961 (where 1961 = 1).
This data is calculated based on a ‘cost of basic needs’ approach. It represents the share of the population unable to meet basic needs (including minimal nutrition and adequately heated shelter) according to prices of locally-available goods and services at the time.
This data is calculated based on a ‘cost of basic needs’ approach. It represents the number of people unable to meet basic needs (including minimal nutrition and adequately heated shelter) according to prices of locally-available goods and services at the time.
Figure illustrates the gap in GDP per hour worked with respect to the United States. The gap is calculated by taking a country's GDP per hour worked minus that of the US, divided by US GDP per hour worked. A positive gap suggests the country is more productive (has higher GDP per hour worked) than the US.
