What stage number had the general classification Rory Sutherland?
CREATE TABLE "classification_leadership_progress_table" (
  "stage" real,
  "winner" text,
  "general_classification" text,
  "mountains_classification" text,
  "points_classification" text,
  "youth_classification" text,
  "team_classification" text
);
SELECT COUNT("stage") FROM "classification_leadership_progress_table" WHERE "general_classification"='Rory Sutherland';