Create the data set.


data totals; 
 input Site $ Quarter Sales Salespersons; 
format Sales dollar12.2;
datalines; 
Lima   1 4043.97   4 
NY      1 8225.26  12 
Rome 1 3543.97    6 
Lima  2 3723.44    5 
NY     2 8595.07   18 
Rome  2 5558.29   10 
Lima  3 4437.96    8 
NY     3 9847.91   24 
Rome 3 6789.85   14 
Lima 4 6065.57   10 
NY     4 11388.51  26 
Rome 4 8509.08   16 
;