Kao Ming-te does not hesitate to say that the best time for sales of tong shu was back in the heyday of the big-money illegal lotteries. Annual sales exceeded 200,000 copies.
高銘德不諱言，玩六合彩、大家樂最瘋狂的那幾年，通書賣得最好，一年的銷量大約二十萬本。