Extraction of Minerals 



119 



m 

 < 



Q 



<1 



O 



o 



o 

 <1 



w 



o 



o 



3 



o 



Iz; 

 h-i 



% 



o 



H-I 



o 



Total. 



19,184 

 5,029 



24,293 



s i 

 ^ i 



3,660 

 1,097 



4,757 



21 to 44 

 Years. 



12,397 

 3,269 



o 



16 to 20 

 Years. 



CO Ci 



1— 1 00 



zo lO 



o 



CM 



14 to 15 

 Years. 





to 



lO 



10 to 13 

 Years. 



O 00 

 CM 



00 

 CM 



Age Not 

 Specified. 





ai 



CM 

 O 



Ol 

 CM 



o 





»o 



to 



.5 c 



c3 



OH 



'a 



03 



