CREATE TABLE table_19860 ("Year" FLOAT, "Player" TEXT, "Country" TEXT, "Score" TEXT, "Margin of victory" TEXT, "Winners share  (  $  ) " FLOAT, "Honoree ( s ) " TEXT)

How many countries does honoree Roberto de Vicenzo represent?
SELECT COUNT("Country") FROM table_19860 WHERE "Honoree(s)" = 'Roberto De Vicenzo'
SELECT COUNT("Country") FROM "table_19860" WHERE "Honoree(s)" = 'Roberto De Vicenzo'