What was the Billboard peak for the album released on September 12, 2000 by sanctuary?
CREATE TABLE "discography" (
  "date_of_release" text,
  "title" text,
  "billboard_peak" text,
  "riaa_cert" text,
  "label" text
);
SELECT "billboard_peak" FROM "discography" WHERE "label"='sanctuary' AND "date_of_release"='september 12, 2000';