canned tuna, shrimp and crahmeat served more by 

 higher income groups, hut canned mackerel served 

 more by lower income groups 



LOWER INCOME 



^^^ 



5^ 





CO 



percentage of households 

 MIDDLE INCOME I 



^ 



CO 



23 



^^; 



HIGHER INCOME 



^^^ 





^0 



00 03 1-; 





1 



OO r-; »-; 



ITS r~ »— 



CO 



