Which years did the USA have a rank lower than 6 and an assist number less than 26?
CREATE TABLE "assists" (
  "rank" real,
  "player" text,
  "nation" text,
  "assist" real,
  "games" real,
  "years" text
);
SELECT "years" FROM "assists" WHERE "assist"<26 AND "rank"<6 AND "nation"='usa';