List of world number one male golfers

Columns: Country | Player | Start date | End date | Number of weeks | Cumulative total weeks
FRG | Bernhard Langer | April 6 , 1986 | April 26 , 1986 | 3 | 3 | ESP | Seve Ballesteros | April 27 , 1986 | September 13 , 1986 | 20 | 20 | AUS | Greg Norman | September 14 , 1986 | November 21 , 1987 | 62 | 62 | ESP | Seve Ballesteros ( 2 ) | November 22 , 1987 | November 28 , 1987 | 1 | 21 | AUS | Greg Norman ( 2 ) | November 29 , 1987 | October 29 , 1988 | 48 | 110 | ESP | Seve Ballesteros ( 3 ) | October 30 , 1988 | November 5 , 1988 | 1 | 22 | AUS | Greg Norman ( 3 ) | November 6 , 1988 | November 12 , 1988 | 1 | 111

Example questions:
For the best man golfer from the United States , how many Players Championships were won ? | For the golfer who was ranked the worlds number one from September 14 , 1986 to November 21 , 1987 , What was his middle name ? | For the golfer who was ranked the worlds number one from November 29 , 1987 to October 29 , 1988 , What was the birth month ? | For the golfer who was ranked the worlds number one from November 22 , 1987 to November 28 , 1987 , What was the birth month ?

Answers:
2 | John | February | April