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Birth control effectiveness is typically reported for one year of use, so 100 years of use would produce 1 pregnancy on average


Or, one year of use by 100 men would result in an average of one partner pregnancy per year for this group.


So a kid a year? A couple married at 18 would be on the road to a record family size at 1 kid a year


No, a kid per hundred years.


oh well that makes much more sense. Thanks for clarifying




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