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 
;