What is the highest year that Europe won, when the USA's Captain was Kathy Whitworth?
CREATE TABLE "results" (
  "year" real,
  "venue" text,
  "winning_team" text,
  "score" text,
  "usa_captain" text,
  "europe_captain" text
);
SELECT MAX("year") FROM "results" WHERE "winning_team"='europe' AND "usa_captain"='kathy whitworth';