CREATE TABLE table_203_860 (id DECIMAL, "rank" DECIMAL, "city" TEXT, "population  ( 2011 ) " DECIMAL, "population  ( 2001 ) " DECIMAL, "state/territory" TEXT)

which is the last city for population in the year 2001 ?
SELECT "city" FROM table_203_860 ORDER BY "population (2001)" LIMIT 1
SELECT "city" FROM "table_203_860" ORDER BY "population (2001)" NULLS FIRST LIMIT 1