Table:
text: Tony Lema
PGA Tour wins (12)
PGA Tour wins (12)
Date_ Tournament Winning_score Margin_of_victory Runners_up
Jul 10, 1964 The Open Championship –9 (73-68-68-70=279) 5 strokes Jack Nicklaus
Jun 6, 1965 Buick Open Invitational –8 (71-70-69-70=280) 2 strokes Johnny Pott
Aug 23, 1965 Carling World Open –5 (71-71-67-70=279) 2 strokes Arnold Palmer
May 29, 1966 Oklahoma City Open Invitational –17 (69-68-69-65=271) 6 strokes Tom Weiskopf

Question: By how many shots did Lema beat Jack Nicklaus among PGA Tour victories (12) Tony Lema?