The bar chart illustrates the proportion of involvement in teaching and science in developing and industrialised countries between 1980 and 1990.
Overall, a clear disparity is evident between educational and scientific engagement in both groups, with industrialised nations consistently outperforming developing ones throughout the decade.
Regarding average years of schooling, industrialised countries showed a notable rise from 8 years in 1980 to about 10 years in 1990. Meanwhile, developing countries experienced only a slight increase from 2.5 to 3.5 years. This sharp contrast highlights the persistent educational gap between the two categories.
In terms of participation in scientific research, the number of scientists and technicians per 1,000 people increased in both regions. Developing countries doubled their figure from around 10 to 20, whereas industrialised nations saw growth from 40 to 70 per 1,000 individuals. Financial investment in research and development also revealed significant differences. Developing countries spending grew from roughly 20 to 40 billion US dollars, while industrialised countries expanded their investment from about 200 to 300 billion, demonstrating a much stronger commitment to scientific progress.