What is the highest number of bronze medals of west germany, which has more than 0 golds?
CREATE TABLE "medals_table" (
  "rank" text,
  "nation" text,
  "gold" real,
  "silver" real,
  "bronze" real,
  "total" real
);
SELECT MAX("bronze") FROM "medals_table" WHERE "nation"='west germany' AND "gold">0;