Population studies: defining our terms

life expectancy- estiamted number of years a person will live.   definition here
Japan- 79(male) 83(female)
France-81
Kenya-57.86
Cuba-77
U.S-78
Afagahnastan-44
crude birth rate- births per 1,000 people per year.  definition here
Japan-7.64/1,000
Kenya-36.64/1,000
Ethiopia-43.66/1,000
U.S-13.83/1,000
Germany-8.18/1,000
crude death rate- deaths per year per 1,000 people.  definition here
Afghanistan-17.83/1,000
Kenya-9.72/1,000
U.S-8.38/1,000
Japan-9.48/1,000
Mexico-4.8/1,00
RNI- crude birth rate minus crude death rate.  definition here
TFR- average number of children that would be born to a women over her lifetime. definition here
Niger-7.68
Afghanastan-5.5
Japan-1.2
U.S-2.06
Germany-1.42
net migration rate- the difference between immigrants and emigrants of an area in a period of time devidied by 1,000 inhabitants. definition here
population pyramid- shows the distubution of different age groups in an illistration. definition here