Which Wins has a Country of new zealand and a Last title larger than 1968?
CREATE TABLE "champions_by_nationality" (
  "rank" text,
  "country" text,
  "wins" real,
  "winners" real,
  "first_title" real,
  "last_title" real
);
SELECT MIN("wins") FROM "champions_by_nationality" WHERE "country"='new zealand' AND "last_title">1968;