How many chart runs had a debut position of more than 7 when peak position was 11?
CREATE TABLE "taiwan" (
  "chart" text,
  "single_title" text,
  "debut_position" real,
  "peak_position" real,
  "chart_run" real
);
SELECT COUNT("chart_run") FROM "taiwan" WHERE "debut_position">7 AND "peak_position"=11;