Population Studies

• Life Expectancy-the expected (in the statistical sense) number of years of life remaining at a given age
• Japan- 82.12 years (ranked 3)
• France-80.98 (ranked 8)
• Kenya-57.86 (ranked 189)
• Cuba-75.19 (ranked 55)
• United States-78.11 (ranked 49)
• Afghanistan-44.4 years (ranked 219)
• Crude birthrate- the nativity or childbirths per 1,000 people per year
• Japan-7.64 births/1,000 population (ranked 222)
• Kenya-36.64 births/1,000 population (ranked 29)
• Ethiopia-43.66 births/1,000 population (ranked 7)
• United States-13.83 births/1,000 population (ranked 154)
• Germany- 8.18 births/1,000 population (ranked 220)
• Crude Death Rate-a measure of the number of deaths (in general, or due to a specific cause) in some population, scaled to the size of that population, per unit time. 
• Afghanistan-17.83 deaths/1,000 population (ranked 7)
• Kenya-9.72 deaths/1,000 population (ranked 67)
• United States-8.38 deaths/1,000 population (ranked 99)
• Japan-9.54 deaths/1,000 population (ranked 69)
• Mexico-4.8 deaths/1,000 population (ranked 192)
• RNI (Rate Of Natural Increase) - the crude birth rate minus the crude death rate of a population. If we neglect themigration, then a positive RNI number means that the population increases and a negative number means that the population decreases.
• TFR (total fertility rate)-the average number of children that would be born to a woman over her lifetime if she were to experience the exact current age-specific fertility rates through her lifetime, and she were to survive from birth through the end of her reproductive life
• Niger-7.75 children born/woman (ranked 1)
•  Afghanistan- 5.60 children born/woman (ranked 13)
• Japan-1.21 children born/woman (ranked 218)
• United States-2.05 children born/woman (ranked 126)
• Germany-1.41 children born/woman (ranked 196)
• Net Migration Rate-the difference of immigrants and emigrants of an area in a period of time, divided (usually) per 1,000 inhabitants 
• Mexico- -3.61 migrants/1,000 population (ranked 153)
• United States- 4.32 migrants/1,000 population (ranked 25)
• United Arab Emirates-22.98 migrants/1,000 population (ranked 1)
• Argentina-0 migrants/1,000 population (ranked 73)
• Saudi Arabia- -7.60 migrants/1,000 population (ranked 171)
• Uganda - -8.83 migrants/1,000 population (ranked 173)
• Population Pyramid-a graphical illustration that shows the distribution of various age groups in a human population (typically that of a country or region of the world), which normally forms the shape of a pyramid.