Create the customer data.

data customer;
  length city $20;
  input lastname$ zip x y city $;

cards;
Smith    27611 1.374164 0.623436 Raleigh  
Jones    27560 1.375948 0.625278 Morrisville 
Doe      27513 1.375279 0.624922 Cary  
Patel    27520 1.369120 0.621970 Clayton  
White    27705 1.377910 0.628629 Durham
Short    27587 1.370373 0.627680 WakeForest
Phillips 27591 1.368124 0.624705 Wendell
Jackson  27597 1.367264 0.625629 Zebulon
;