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1·Unless otherwise specified, in this yearbook, economically active population, employment population and unemployment population are all above 15 years old.

除非特别注明，本书中的经济活动人口、就业人口和失业人口均为15岁及以上人口。

2·In the USA, 45% of drowning deaths are among the most economically active segment of the population.

在美国，溺水死亡有45%发生在人口中经济上最活跃的阶层中间。