CREATE TABLE table_63706 ("Year" FLOAT, "Baden" TEXT, "W\\u00fcrttemberg" TEXT, "Nordbayern" TEXT, "S\\u00fcdbayern" TEXT)

What's the Nordbayern with a W rttemberg of Union B ckingen in the year before 1932?
SELECT "Nordbayern" FROM table_63706 WHERE "Year" < '1932' AND "W\u00fcrttemberg" = 'union böckingen'
SELECT "Nordbayern" FROM "table_63706" WHERE "W\u00fcrttemberg" = 'union böckingen' AND "Year" < '1932'