CREATE TABLE table_78031 ("Source" CLOB, "Date" CLOB, "Cardwell" CLOB, "Jones" CLOB, "Knight" CLOB, "Lanier" CLOB, "Martin" CLOB)

What source has a Knight of 2%?
SELECT "Source" FROM table_78031 WHERE "Knight" = '2%'
SELECT "Source" FROM "table_78031" WHERE "Knight" = '2%'