CREATE TABLE table_203_541 (id DECIMAL, "games" TEXT, "host city" TEXT, "dates" TEXT, "nations" DECIMAL, "participants" DECIMAL, "events" DECIMAL)

what dates did the 1984 summer olympics take place ?
SELECT "dates" FROM table_203_541 WHERE "games" = '1984 summer olympics'
SELECT "dates" FROM "table_203_541" WHERE "games" = '1984 summer olympics'