Whatever you think the answer is to the question posed in the title, I'd guess that that your estimate is way off. Mine sure was as I was seduced by a promiscuous factoid. Enjoy!
How Many People Have Ever Lived On Earth? 108 Billion
|Year||Population||Births per 1,000||Births Between Benchmarks|
|NUMBER WHO HAVE EVER BEEN BORN||107,602,707,791|
|World population in mid-2011||6,987,000,000|
|Percent of those ever born who are living in 2011||6.5|
Source: Population Reference Bureau estimates.