What is the 4wi when the economy is 7.82?
CREATE TABLE "bowling_averages_top_10" (
  "player" text,
  "team" text,
  "matches" real,
  "overs" text,
  "wickets" real,
  "average" text,
  "economy" text,
  "bbi" text,
  "4wi" real,
  "5wi" real
);
SELECT "4wi" FROM "bowling_averages_top_10" WHERE "economy"='7.82';