The provided bar graphs reveal data about attendance level in education and science in developing and industrialised countries for 10 years.
Overall, we can see that all 10 decades, industrialised countries took dominance in all three criterias, whereas developing countries remained in the second place.
In 1980, average years of schooling in developing countries were approximately 2.3, while in industrialised countries, they were 8.7 years. Following this, scientists and technicians in underdeveloped nations were 10, meanwhile in developed countries, they were 41 per 1000 people. Finally, expenditure on research and development, in advanced countries, they were about 150, and less 100 billion dollars were spent in developing countries.
In 1990, we can see radical changes in developed nations. 11 years of schooling were in industrialised nations, and 3 years in middle-income countries. Coming to scientists and technicians, in developed countries, they increased dramatically and reached to 70, meanwhile in developing countries, it increased just to 18. Lastly, 350 billion dollars were spent on research and development in advanced countries, however in underdeveloped nations, it slighly declined, and stood approximately at 30.