|Population||7.2 billion||320 million|
|Population Density (people per sq. kilometer)||51||32|
|Population Increase (per year)||82 million||2.7 million|
|Population Growth Rate||1.15%||0.85%|
|Doubling Time||61 years||82 years|
|Total Fertility Rate||2.5||1.8|
|Births per 1,000 Women 15-19||52||27|
|Life Expectancy||67 (male), 71 (female)||75 (male), 80 (female)|
|Births Per Year||135.8 million||4.4 million|
|Infant Mortality Rate (infant deaths per 1,000 live births)||42||6.5|
|Total Dependency Ratio||52||50|
|Child Dependency Ratio||41||30|
|Elderly Dependency Ratio||12||20|
|Projected Population, 2050||9.6 billion||403 million|
|Married Women Using Modern Contraception||55%||73%|
|Metric Tons of Annual CO2 Emissions per capita||4.1||19|
Median Age: Age that divides the population in two parts of equal size; that is, there are as many persons with ages above the median as there are with ages below the median.
Doubling Time: The number of years it would take for a population to double in size at its present rate of growth. It is calculated by dividing a country’s growth rate into the number 70.
Total Fertility Rate: The average number of children a hypothetical women would have at the end of her reproductive years, based on current age-specific fertility rates.
Dependency Ratio: The total dependency ratio is the ratio of the sum of the population aged 0-14 and that aged 65+ to the population aged 15-64. The child dependency ratio is the ratio of the population aged 0-14 to the population aged 15-64. The old-age dependency ratio is the ratio of the population aged 65 years or overto the population aged 15-64. All ratios are presented as number of dependents per 100 persons of working age (15-64).
Urban Population: Population living in areas classified as urban according to the criteria used by country.
Metric Tons of Annual CO2 Emissions per capita: The amount of CO2 in metric tons produced or emitted per person. Figures shown include carbon dioxide produced through fuel combustion.