In what industry was the company that had 89.16 billions of dollars in sales?
CREATE TABLE "2007_list" (
  "rank" real,
  "company" text,
  "headquarters" text,
  "industry" text,
  "sales_billion" text,
  "profits_billion" text,
  "assets_billion" text,
  "market_value_billion" text
);
SELECT "industry" FROM "2007_list" WHERE "sales_billion"='89.16';