CREATE TABLE table_203_390 (id DECIMAL, "year" DECIMAL, "venue" TEXT, "winners" TEXT, "runner-up" TEXT, "3rd place" TEXT)

which team has the most third place wins in the speedway junior world championship between 2005 and 2012 ?
SELECT "3rd place" FROM table_203_390 GROUP BY "3rd place" ORDER BY COUNT(*) DESC LIMIT 1
SELECT "3rd place" FROM "table_203_390" GROUP BY "3rd place" ORDER BY COUNT(*) DESC NULLS LAST LIMIT 1