The given line graphs illustrate the percentage of population and its segmentation in three different age groups in Piltover city from the year 1970 to 2040.
Overall, it can be seen that Piltover had more urban population than rural and the percentage increased throughout the span of 40 years and the majority of the people were from the 15-60 years age group.
Firstly, around 20% of people lived in urban areas in 1970 from where the number kept on rising quite gradually for the next 30 years. Apart from the constancy in the middle, the population number is predicted to go up again steadily from 2020 to 2040 and will reach as high as 60%. On the contrary, the rural population had an opposite trend, having no more than 25% (approximately) throughout the period and the growth from 1970 was quite marginal. It is also estimated that the total population of Piltover will grow significantly over the next few decades.
As can be seen in the second graph, most citizens of Piltover were from 15-60 years, standing at more than 20% in 1970, from that point the line shot up consistently and it is forecasted that the trend will be the same till 2040. People under 15 and over 60 years, however, had almost identical trends–with minor fluctuations and intersections between 1980 and 2000, both lines went up slowly and parallelly and it will reach almost 20% at the end of the period.