这张信息图显示了全球移动设备的使用情况
去年，全球大约有86亿移动设备用户数；然而，尽管移动设备的总体用户数已经超过了全球人口数，但全球范围内的移动设备使用情况不尽相同；例如，在南苏丹，每100人中只有12位移动设备用户。
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Health and Healthcare Systems
Animation: Global life expectancy (1950-2021)
Life expectancy has risen globally over the past 70 years, but there are variations by region and by sex. These animations show some of the key trends.
This infographic shows the rise of mobile device subscriptions worldwide
Around 8.6 billion mobile device subscriptions were active around the world last year. Yet mobile adoption hasn’t been equally spread across the globe.
Health and Healthcare Systems
What does the global decline of the fertility rate look like?
For the last 50 years, fertility rates have decreased worldwide, due to women's empowerment, lower child mortality and increased cost of raising children.