CREATE TABLE table_65365 ("1953" CLOB, "1954" CLOB, "1955" CLOB, "1956" CLOB, "1957" CLOB, "1958" CLOB, "1959" CLOB, "1960" CLOB, "1961" CLOB, "1962" CLOB, "1963" CLOB)

what is 1955 when 1961 is n/a?
SELECT "1955" FROM table_65365 WHERE "1961" = 'n/a'
SELECT "1955" FROM "table_65365" WHERE "1961" = 'n/a'