CREATE TABLE table_name_18 (week INTEGER, game_site VARCHAR)
SELECT MIN(week) FROM table_name_18 WHERE game_site = "milwaukee county stadium"
หมายเลขสัปดาห์ต่ำสุดของเกมที่สนามมิลวอกีเคาน์ตีคือเท่าใด?
What is the lowest week number for the game that was at milwaukee county stadium?