Table:
text: 1987 PGA Championship
Round summaries
Final round
Place Player Country Score To_par Money_
T1 Larry Nelson United States 70-72-73-72=287 –1 Playoff
T1 Lanny Wadkins United States 70-70-74-73=287 –1 Playoff
T3 Scott Hoch United States 74-74-71-69=288 E 58750
T3 D. A. Weibring United States 73-72-67-76=288 E 58750
T5 Mark McCumber United States 74-69-69-77=289 +1 37500
T5 Don Pooley United States 73-71-73-72=289 +1 37500
T7 Ben Crenshaw United States 72-70-74-74=290 +2 27500
T7 Bobby Wadkins United States 68-74-71-77=290 +2 27500
9 Curtis Strange United States 70-76-71-74=291 +3 22500
T10 Seve Ballesteros Spain 72-70-72-78=292 +4 17000
T10 David Frost South Africa 75-70-71-76=292 +4 17000
T10 Tom Kite United States 72-77-71-72=292 +4 17000
T10 Nick Price Zimbabwe 76-71-70-75=292 +4 17000

Question: Which country had the most leaders at the 1987 PGA Championship?

Question: How many times is the United States listed as a country for the 1987 PGA Championship?