《史记·七十列传·货殖列传》
享有千户的封君，每年租税收入可达二十万钱，朝拜天子、访问诸侯和祭祀馈赠，都要从其中支出。
千户之君则二十万，朝觐聘享出其中。
A feudal lord with a thousand households would have a tax revenue of 200,000 coins per year, which would be spent on visits to the emperor, feudal lords, and sacrificial ceremonies.