CREATE TABLE table_204_983 (id NUMBER, "year" NUMBER, "1st venue" CLOB, "2nd venue" CLOB, "3rd venue" CLOB, "4th venue" CLOB, "5th venue" CLOB, "6th venue" CLOB)

which year is previous to 2011
SELECT "year" FROM table_204_983 WHERE id = (SELECT id FROM table_204_983 WHERE "year" = 2011) - 1
SELECT "year" FROM "table_204_983" WHERE "id" = (SELECT "id" FROM "table_204_983" WHERE "year" = 2011) - 1