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Here a screen image of a world map is shown with brown dots of various sizes scattered over the map. The dot with the largest radius is on the USA and the next largest on China. There are some medium-sized dots on India, Japan and some European countries with slightly smaller dots on the rest of the world. At the bottom left a key explains that dots represents millions of internet users per country. The largest dot represents 150 to 180 million users and the smallest 0 to 30 million.

 5.4 Proportional symbol maps