What's the Südbayern in 1928?
CREATE TABLE "1928_to_1933" (
  "year" real,
  "baden" text,
  "w_rttemberg" text,
  "nordbayern" text,
  "s_dbayern" text
);
SELECT "s_dbayern" FROM "1928_to_1933" WHERE "year"=1928;