A line graph might be useful for showing the pattern of change in world population ... without gaps between them. The pie chart below shows the estimated population of Europe in 2021.

It is possible to interpret a pie chart by looking at the proportions of the sectors. The angles can be used to work out what proportion of the whole population a pie chart sector represents.

Since the middle of the 20th Century, the global population has more than tripled in size, from 2.5 billion in 1950, to 7.9 billion in 2021. Research by the United Nations projects that the global ...

The World Population Prospects 2019: Highlights, estimates that the next 30 years will see the global population add an extra 2 billion people to today's figure of 7.7 billion, and, by the end of ...