CREATE TABLE table_10752 ("1954" CLOB, "1955" CLOB, "1956" CLOB, "1957" CLOB, "1958" CLOB, "1959" CLOB, "1960" CLOB, "1961" CLOB, "1962" CLOB, "1963" CLOB, "1964" CLOB, "1965" CLOB)

Tell me the 1958 when 1957 is dnf-9
SELECT "1958" FROM table_10752 WHERE "1957" = 'dnf-9'
SELECT "1958" FROM "table_10752" WHERE "1957" = 'dnf-9'