Table:
text: Bill Rogers (golfer)
PGA Tour wins (6)
PGA Tour wins (6)
Date_ Tournament Winning_score To_par Margin_of_victory
Feb 11, 1978 Bob Hope Desert Classic 69-67-67-67-69=339 −21 2 strokes
Mar 29, 1981 Sea Pines Heritage 71-69-68-70=278 −6 1 stroke
Jul 19, 1981 The Open Championship 72-66-67-71=276 −4 4 strokes
Aug 30, 1981 World Series of Golf 68-69-71-67=275 −5 1 stroke
Oct 4, 1981 Texas Open 67-66-70-63=266 −14 Playoff
Mar 20, 1983 USF&G Classic 69-67-69-69=274 −14 3 strokes

Question: On what date was the winning score 72-66-67-71=276 for Bill Rogers (golfer)'s PGA Tour Siege 6?

Question: What is the PGA Tour(6) winning margin at the Bob Hope Desert Classic Tournament for Bill Rogers (golfer)?

Question: On what date is Bill Rogers (golfer) winning tally on the PGA Tour 6 wins 71-69-68-70=278?