Which Rank is the average one that has a % Change of 0.7%, and a Total Cargo (Metric Tonnes) smaller than 1,556,203?
CREATE TABLE "2012_preliminary_statistics" (
  "rank" real,
  "airport" text,
  "code_iata_icao" text,
  "total_cargo_metric_tonnes" real,
  "pct_change" text
);
SELECT AVG("rank") FROM "2012_preliminary_statistics" WHERE "pct_change"='0.7%' AND "total_cargo_metric_tonnes"<'1,556,203';