In Japan, which is aging rapidly and has been stuck in the economic doldrums for years, the consumption of hypnotics, as measured in defined daily dose for statistical purposes (S-DDD) per thousand population, was a truly startling 41.06 in 2005. This dwarfs the S-DDD per thousand population figures seen in Taiwan and the US in the same year-11.07 and 21.14, respectively.
若以 S-DDD（每千人口每日界定劑量數）來看，長期經濟不振、高齡化危機深重的鄰國日本，安眠藥用量更是驚人，根據 2005 年的統計，台灣 S-DDD 為 11.07，美國為 21.14，日本則高達 41.06。