Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Year | Player | Country | Score | Margin of victory | Winners share ( $ ) | Honoree(s) |
| --- | --- | --- | --- | --- | --- | --- |
| 2013.0 | Matt Kuchar | United States | 276 (−12) | 2 strokes | 1160000.0 | Raymond Floyd |
| 2012.0 | Tiger Woods (5) | United States | 279 (−9) | 2 strokes | 1160000.0 | Tom Watson |
| 2011.0 | Steve Stricker | United States | 272 (−16) | 1 stroke | 1160000.0 | Nancy Lopez |
| 2010.0 | Justin Rose | England | 270 (−18) | 3 strokes | 1080000.0 | Seve Ballesteros |
| 2009.0 | Tiger Woods (4) | United States | 276 (−12) | 1 stroke | 1080000.0 | JoAnne Carner and Jack Burke, Jr. |
| 2007.0 | K.J. Choi | South Korea | 271 (−17) | 1 stroke | 1080000.0 | Louise Suggs and Dow Finsterwald |
| 2005.0 | Bart Bryant | United States | 272 (−16) | 1 stroke | 990000.0 | Betsy Rawls and Cary Middlecoff |
| 2004.0 | Ernie Els | South Africa | 270 (−18) | 4 strokes | 945000.0 | Lee Trevino and Joyce Wethered |
| 2003.0 | Kenny Perry (2) | United States | 275 (−11) | 2 strokes | 900000.0 | Julius Boros and William C. Campbell |
| 2002.0 | Jim Furyk | United States | 274 (−14) | 2 strokes | 810000.0 | Kathy Whitworth and Bobby Locke |
| 2001.0 | Tiger Woods (3) | United States | 271 (−17) | 7 strokes | 738000.0 | Payne Stewart |
| 2000.0 | Tiger Woods (2) | United States | 269 (−19) | 5 strokes | 558000.0 | Jack Nicklaus |
| 1999.0 | Tiger Woods | United States | 273 (−15) | 2 strokes | 459000.0 | Ben Hogan |
| 1998.0 | Fred Couples | United States | 271 (−17) | 4 strokes | 396000.0 | Peter Thomson |
| 1997.0 | Vijay Singh | Fiji | 202* (−14) | 2 strokes | 342000.0 | Gary Player |
| 1996.0 | Tom Watson (2) | United States | 274 (−14) | 2 strokes | 324000.0 | Billy Casper |
| 1994.0 | Tom Lehman | United States | 268 (−20) | 5 strokes | 270000.0 | Mickey Wright |
| 1993.0 | Paul Azinger | United States | 274 (−14) | 1 stroke | 252000.0 | Arnold Palmer |
| 1992.0 | David Edwards | United States | 273 (−15) | Playoff | 234000.0 | Joseph Dey |
| 1991.0 | Kenny Perry | United States | 273 (−15) | Playoff | 216000.0 | Babe Zaharias |
| 1990.0 | Greg Norman | Australia | 216* (E) | 1 stroke | 180000.0 | Jimmy Demaret |
| 1989.0 | Bob Tway | United States | 277 (−11) | 2 strokes | 160000.0 | Henry Cotton |
| 1988.0 | Curtis Strange | United States | 274 (−14) | 2 strokes | 160000.0 | Patty Berg |
| 1987.0 | Don Pooley | United States | 272 (−16) | 3 strokes | 140000.0 | Old Tom Morris and Young Tom Morris |
| 1986.0 | Hal Sutton | United States | 271 (−17) | 4 strokes | 100000.0 | Roberto De Vicenzo |
| 1985.0 | Hale Irwin (2) | United States | 281 (−7) | 1 stroke | 100000.0 | Chick Evans |
| 1984.0 | Jack Nicklaus (2) | United States | 280 (−8) | Playoff | 90000.0 | Sam Snead |
| 1983.0 | Hale Irwin | United States | 281 (−7) | 1 stroke | 72000.0 | Tommy Armour |
| 1982.0 | Raymond Floyd | United States | 281 (−7) | 2 strokes | 63000.0 | Glenna Collett-Vare |
| 1981.0 | Keith Fergus | United States | 284 (−4) | 1 stroke | 63000.0 | Harry Vardon |
| 1980.0 | David Graham | Australia | 280 (−8) | 1 stroke | 54000.0 | Byron Nelson |
| 1979.0 | Tom Watson | United States | 285 (−3) | 3 strokes | 54000.0 | Gene Sarazen |
| 1978.0 | Jim Simons | United States | 284 (−4) | 1 stroke | 50000.0 | Francis Ouimet |
| 1977.0 | Jack Nicklaus | United States | 281 (−7) | 2 strokes | 45000.0 | Walter Hagen |
Question:
How many countries does honoree Roberto de Vicenzo represent?
Answer:
1.0