Wednesday, July 3, 2013

How Many People Have Ever Lived on Earth?

it seems like a question from N. Keyfitz Applied Math Demography, isn't it?
Below Carl Haub answers the question, and have a look at the table with his estimates. It seems like he calculated total births.
  
Let me reformulate: How Many person-years People Have Ever Lived on Earth?
probably that proportion would be about 1/4 ?

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