CREATE TABLE table_30800 ("Player" CLOB, "Matches" FLOAT, "Overs" CLOB, "Wickets" FLOAT, "Average" CLOB, "Economy" CLOB, "BBI" CLOB, "4wi" FLOAT)

What is the BBI whent the economy is 5.68?
SELECT "BBI" FROM table_30800 WHERE "Economy" = '5.68'
SELECT "BBI" FROM "table_30800" WHERE "Economy" = '5.68'