How many S.R. that has Runs Scored of 161 and an Average larger than 26.83?
CREATE TABLE "australia" (
  "name" text,
  "innings" real,
  "runs_scored" real,
  "balls_faced" real,
  "average" real,
  "s_r" real
);
SELECT SUM("s_r") FROM "australia" WHERE "runs_scored"=161 AND "average">26.83;