POPULATION. 



393 



76 years. Which indicates that the chances for longevity of persons ad- 

 vanced in life is greater in Carolina than elsewhere. If instead of the 

 above estimate, the number of individuals enumerated at each age be 

 multiplied by the mean future expectation of life from that age, as given 

 in life assurance tables, it Avill be found the results for South Carolina 

 and for the United States agree very nearly, being about 33 years each 

 From an economical point of view, the ages of the population may be 

 considered in regard to the proportions between the number of persons 

 belonging to the dependent anid the number belonging to the self-sus- 

 taining and contributing ages. The following table shows tlie number 

 of persons in each 1,000 of the male and female, white and colored native 

 population of South Carolina and of the United States at the early de- 

 pendent or formative age, 1 year to 15 years ; at the self-sustaining and 

 contributing ages, 15 years to 70 years ; and at the later dependent age, 

 70 years and over, according to the United States Census of 1880 : 



26 



