The line graph below shows the urbanisation rate in South Korea and Indonesia. Write a description (of about 150 words) of the trends in the graph.

The supplied line graph illustrates the demographic figure of people who migrated to metropolises from the rural areas in two distinct continents over the period of 40 years ( from the mid-1960s to 2009s ). Overall, it is manifest that South Korea and Indonesia witnessed the exponential growth of the municipal population. Moreover, of particular note is the statistic of urbanization ratio in the former country remarkably surpassed that of its counterpart. Looking at the graph in more detail, in the mid-1960s, the proportion of South Korean urban migrants held the lion share of roughly 30%, followed by that of Indonesian at around 18%. In the next decade, Indonesia experienced a marginal decline in urban migration and subsequently climbed more than 20% in 1989s. Meanwhile, the percentage of South Korean city dwellers underwent a gradual acceleration of approximately 18% during the same period registered. Turning to the remaining feature, the rate of metropolitan citizens in Indonesia decreased moderately, whereas an influx of South Korean rural communities moved to municipal regions, with its statistics soaring to roughly above one-tenth in the following years surveyed. As opposed to its first ten years, the ratio of Indonesian urbanization demography exhibited sharply soared and reached its climax of around 50% in the last years given. Meanwhile, that of the latter continued to transcend with a significant figure of more than 80%, despite its slight fluctuation.