Population Studies

Life Expectancy- Is the the average of years a person lives in a country. Wikipedia Definition
Afghanistan- 44 years
Cuba- 77 years
France- 80 years
Japan- 82 years
Kenya- 57 years
United States- 78 years  CIA Factbook Life expectancy

Crude Birth rate- Is the estimated amounts of child births per 1,000 people per year Wikipedia Definition
Ethiopia-  43 births/1,000 population
Japan- 7.64 births/1,000 population
Kenya- 36 births/1,000 population
Germany- 8.18 births/1,000 population
United States- 13.83 births/1,000 population CIA factbook Crude Birth rate

Crude death rate- Is the total number on average of people who die each year per 1,000 Wiki Definition
Afghanistan- 17.83 deaths/1,000 population
Japan- 9.54 deaths/1,000 population
Kenya- 9.72 deaths/1,000 population 
Mexico- 4.8 deaths/1,000 population
United States- 8.38 deaths/1,000 population

 RNI (rate of natural increase)-  is the birth rate minus the death rate of a population Wikipedia Def.

TFR (total fertility rate) -  is the rate of how many kids a women would have in her lifetime. TFR wiki
Afghanistan- 5 children
Germany- 1.42 children
Japan- 1.2 children
Niger- 7.68 children
United States- 2.06 children                      CIA Factbook

net migration rate-  is the difference between emigrants and immigrants wikipededia
Argentina- 0 migrant /1,000 population
Mexico- -3.61 migrant(s)/1,000 population
United States- 4.32 migrant(s)/1,000 population
United Arab Emirates- 22.98 migrant(s)/1,000 population
Uganda- -8.83 migrant(s)/1,000 population
Saudi Arabia- -7.6 migrant(s)/1,000 population                CIA Factbook

population pyramid- it is a graph  that shows the populaiton of the different  age groups in a human population.     Wikiepedia