data illness;
  length town $ 10;
  input town so2 pulm ent;
cards;
Biver 69 17 29
Biver 147 24 37
Gardanne 59 22 45
Gardanne 132 31 57
Bouc 33 14 29
Bouc 116 33 41
Meyrueil 67 14 31
Meyrueil 120 25 52
Greasque 58 19 41
Greasque 92 27 46
;
run;