近年来,海关税收连年增长,2003、2004连续两年增收超千亿元,2005年继续增收500多亿元,去年再次增长800多亿元。如此大幅的增长到底来自哪里? In recent years, the customs revenue has been increasing year by year. In 2003 and 2004, the revenue surpassed 100 billion yuan for two consecutive years. In 2005, it continued to increase its income by more than 50 billion yuan and increased by more than 80 billion yuan last year. Where does such a big increase come from?