The graph illustrates/compares data about of population growth in developing and industrialised countries between 1750 and 2050. The population of developing countries rises, especially after 1950, while the population of industrialised countries grows much more slowly. Units are measured in billions of people.
Between 1750 and 1900, the population of developing countries slowly but gradually increased from about 0.5 billion to around 1.5 billion. After that, growth accelerated dramatically, reaching approximately 3 billion in 1950. From 1950, the figure climbed to about 6.5 billion in 2000 and is predicted to be 10 billion by 2050.
The population of industrialised nations rose at a steady rate from 0.2 billion in 1750 to around 1 billion in 1950. It then continued to grow slowly, reaching about 1.5 billion by 2000. After this, growth is expected to stop.
Overall, developing countries experienced much faster population growth than industrialised nations. The difference between the two populations has widened significantly and is expected to continue increasing in the future
