What is the total number of Yds/Att where Net Yds was 1818, and Rank was larger than 1?
CREATE TABLE "college_career" (
  "rank" real,
  "name" text,
  "attempts" real,
  "net_yds" real,
  "yds_att" real,
  "year" real
);
SELECT COUNT("yds_att") FROM "college_career" WHERE "net_yds"=1818 AND "rank">1;