values constitute part of the basis for those in Col. C. /5/ These val- 

 ues constitute part of the basis for those in cols. B and C. /6/ Interpolated. Orig- 

 inal data given for pentades 40-44, 45-49, etc. /j/ Values are for age 75 or over. 

 /8/ Extrapolated by authors. /9/ Extrapolated. 



243 



