what is the total number for reason for change is district michigan 3rd?
CREATE TABLE "table1_1652224_5" (
  "district" text,
  "vacator" text,
  "reason_for_change" text,
  "successor" text,
  "date_successor_seated" text
);
SELECT COUNT("reason_for_change") FROM "table1_1652224_5" WHERE "district"='Michigan 3rd';