Table 50 Summary by Age and Principal Occupation of Operator: 1987 -Con. 



[For meaning o( abbreviations and symbols, see introductory text] 



Age of operator (years) 



Estimated mar1<Bt value of all machinery 



14 858 

 3 691 

 5 676 



155 519 



877 

 10 932 



1 832 



2 963 

 1 737 



3 876 



590 806 



1 146 

 22 244 



1 783 

 262 757 

 147 368 



1 477 

 242 322 

 164 064 



acres on which used. 



See footnotes at < 



1987 CENSUS OF AGRICULTURE-STATE DATA 



SOUTH DAKOTA 69 



