CREATE TABLE table_204_42 (id NUMBER, "season" NUMBER, "level" CLOB, "division" CLOB, "section" CLOB, "position" CLOB, "movements" CLOB)

how long after 1999 was there a relegated movement ?
SELECT (SELECT "season" FROM table_204_42 WHERE "movements" = 'relegated') - 1999
SELECT (SELECT "season" FROM "table_204_42" WHERE "movements" = 'relegated') - 1999