The given bar chart illustrates the levels of education participation and scientific involvement in developing and industrialised countries in 1980 and 1990.
Overall, the data in the charts depict significant disparities between developing and industrialised countries in terms of average years of schooling, the number of scientists and technicians per 1000 people, and spending on research and development in US billions.
In 1980, developing countries had an average schooling duration of approximately 2.5 years, which saw a modest rise to around 3.5 years by 1990. In sharp contrast, industrialised nations had a notably higher educational average of 8 years in 1980, increasing to 10 years by 1990.
The number of scientists and technicians in developing countries was around 10 per 1000 individuals in 1980, rising to about 20 per 1000 in 1990. Conversely, industrialised countries experienced a significant surge from 40 to 70 science workers per 1000 individuals during the same period. While research and development expenditure in developing countries doubled from about 20 to 40 billion US dollars, industrialised countries ramped up their investment from 200 to 300 billion US dollars by 1990.