Read the following graph and answer the questions:
Gross National Incomes (GNI) from 1960 to 2016 (in million US $)

a. Which country’s national income was highest in 2016 and was it how much?
b. Comparing India and Brazil, which country had a higher national income in 1980?
c. Comparing India and Brazil, which country had a higher income in 2016?
d. Tell the difference between the GNP of Brazil and India in 2016.
e. Calculate the difference between the national incomes of developed and developing countries in 2016.