The given line graph depicts the population of metro towns of four Asian countries starting from 1970 till the present, and the prediction is in the future up to the year 2040.
Overall, the strength of the four nations in terms of population was between 10 to 30 percent at the beginning of 1970, but as the decades progressed, they had the ability to end up four times, and some countries doubled then the count, which was in 1970.
Indonesia and Thailand both had a rough population which was approximately 15 to 20 percent in 1970. In four decades, they both peaked at 25 percent in 2020. Although Thailand can be observed growing steadily, Indonesia is taking a leap and can be reaching to 60 percent by 2040, whereas Indonesia might come close to 50 or less.
Among the Philippines and Malaysia, both had a distinct beginning of 30 percent each in 1970. In 1990 they came very close to 50, but Malaysia continues to soar and can end very close to 80 percent of the population, which surpasses all other three countries. The Philippines might still grow with a marked downfall in 2010, dropping to 40 in 2010 and reaching 50 percent by 2040.