CREATE TABLE table_204_445 (id DECIMAL, "year" DECIMAL, "competition" TEXT, "venue" TEXT, "position" TEXT, "notes" TEXT)

at which world indoor championships did peter widen achieve a higher position : 1989 or 1991 ?
SELECT "year" FROM table_204_445 WHERE "year" IN (1989, 1991) ORDER BY "position" LIMIT 1
SELECT "year" FROM "table_204_445" WHERE "year" IN (1989, 1991) ORDER BY "position" NULLS FIRST LIMIT 1