By comparison, the ratio is ten to 15 times higher in OECD countries, whose ageing population is putting a growing strain on an over-stretched workforce.

• 相比之下,经合组织国家中的比例要高10到15倍,但这些国家中老龄化的人口正在对已过度紧张的工作队伍施加日益增长的压力。