The three bar graphs illustrate the average years of schooling, number of scientists and technicians, and research and development spending in developing and industrialised nations between 1980 and 1990.
Overall, the figure for industrialised countries in all categories was always higher than that for developing countries. Interestingly, spending on research and development in industrialised nations increased significantly, while the remainder showed a slight decline.
One of the most significant features of the chart is that people in developing nations participated in schooling for an average of around 3 years; this only increased slightly from 1980 to 1990. In contrast, industrialised countries spent more average years on education than developing ones, with above 8 years in 1980, rising substantially to approximately 11 years after a decade.
From 1980 to 1990, the number of scientists and technicians showed a large change with a double climb to nearly 70 per 1000 people in industrialised regions. Besides, spending on research and development showed enormous growth in these countries, at about $350 billion in 1990. Finally, the number of scientists and technicians showed a moderate rise to under 20 per 1000 people, and research spending fell from about $50 billion to only $25 billion in developing ones.
In summary, the data reveals clear regional differences between developing and industrialised countries, with all categories in both types of countries showing a significant increase, except for spending on research and development in developing nations.