What is the position for Oleksandr Vorobiov ( ukr ), when the total was larger than 16.25?
CREATE TABLE "qualified_competitors" (
  "position" real,
  "gymnast" text,
  "a_score" real,
  "b_score" real,
  "total" real
);
SELECT COUNT("position") FROM "qualified_competitors" WHERE "gymnast"='oleksandr vorobiov ( ukr )' AND "total">16.25;