How many stumpings has Paul Nixon in his career?
CREATE TABLE "most_dismissals_in_a_career" (
  "rank" real,
  "dismissals" real,
  "player" text,
  "nationality" text,
  "catches" real,
  "stumpings" real,
  "career_span" text
);
SELECT "stumpings" FROM "most_dismissals_in_a_career" WHERE "player"='Paul Nixon';