CREATE TABLE table_203_71 (id DECIMAL, "name" TEXT, "service" TEXT, "rank" TEXT, "role and unit" TEXT, "date of award" TEXT, "notes" TEXT, "image" DECIMAL)

how many services other than the heer had members awarded the knight 's cross of the iron cross ?
SELECT COUNT(DISTINCT "service") FROM table_203_71 WHERE "service" <> 'heer'
SELECT COUNT(DISTINCT "service") FROM "table_203_71" WHERE "service" <> 'heer'