CREATE TABLE table_203_874 (id DECIMAL, "year" DECIMAL, "competition" TEXT, "venue" TEXT, "position" TEXT, "event" TEXT, "notes" TEXT)

in what year was korzeniowski 's last competition ?
SELECT "year" FROM table_203_874 ORDER BY "year" DESC LIMIT 1
SELECT "year" FROM "table_203_874" ORDER BY "year" DESC NULLS LAST LIMIT 1