The given graph depicts the number of passengers who used public transport systems in the town of Somewhere from 2012 to 2015.
On the whole, it can be seen that the number of residents who commuted by trams increased significantly throughout the period. Additionally, at the end of the period, the largest number of people used trams.
To begin with, in 2012, the number of residents who traveled via trains in Somewhere town was 80000, which decreased to only one-eighth of its beginning point in 2014. This figure then inclined significantly to about 35000 in 2014, and 60000 at the end of the examined period in 2015.
Meanwhile, in 2012, the number of individuals who used trams was only 20000, which increased relatively to 25000 in 2013, before reaching its peak at the end of the period, with its figure standing at 95000. Simultaneously, about 55000 people travelled by bus in 2012, however, this figure had decreased by nearly one-third in 2013, which has increased significantly to 70000 in 2014, before experiencing a slight decline to only 60000 people in 2015.