Fig. 4
From: Spatiotemporal evolution of global population ageing from 1960 to 2017
Trend of the coefficient of variation of the global ageing rate from 1960 to 2017
Fig. 4 | BMC Public Health
From: Spatiotemporal evolution of global population ageing from 1960 to 2017
Trend of the coefficient of variation of the global ageing rate from 1960 to 2017