During which round was the final cornerback drafted for the New England Patriots in 2005?
CREATE TABLE "2005_new_england_patriots_draft_selectio" (
  "round" real,
  "overall" real,
  "player" text,
  "position" text,
  "college" text
);
SELECT MAX("round") FROM "2005_new_england_patriots_draft_selectio" WHERE "position"='cornerback';