The bar chart illustrates the number of people who used different kinds of public transport. Overall, while the figures for bus and train usage were unstable, transport by tram increased substantially and became the most popular option.
The highest number of passengers who used trains was around 80,000 in 2012. Nevertheless, in the next year, the proportion of train commuters dropped rapidly to 10,000. Anyway, the figure for people who traveled by train climbed up considerably over the next two years, winding up with over 60,000 commuters. Likewise, from 2012 to 2013, bus usage quickly dropped by over 50,000 to around 40,000 passengers. Then, in 2014, it went up again to about 70,000 travelers and ended up with the number around 60,000 people in 2015.
In terms of tram usage, it was the least common form of transportation in 2012, only 20,000 commuters used the tram. Despite that, the proportion of tram usage increased sharply to over 90,000 passengers in the following years, which rose approximately five times from the starting point.