What was the rank of operator whose technology is CDMA EVDO?
CREATE TABLE "in_operation" (
  "rank" real,
  "operators_name" text,
  "technology" text,
  "subscribers_in_millions" text,
  "ownership" text,
  "market_share" text
);
SELECT MIN("rank") FROM "in_operation" WHERE "technology"='CDMA EVDO';