The graph illustrates the information about how students spent their time to three given activities throughout a two year course. Figures are measured in hours.
Overall, it is obvious that the most time was spent for internet at the last semester, however, lectures and classes was the highest in the first period. At the middle of the second semester time was spent to internet was seen a rapid growth from 3 to 6 while time was spent on lectures and classes grew slightly by just 1. However, students spent less time in the library than the previous semester.
Another noteworthy factor is that in first semester of second year the amount of time spent in the library experienced a rapid growth from 3 to 8 hours as well as overtook the internet. But, students spent less time on classes and it was 6. Surprisingly, according to the last given information, time spent on library and classes decreased by 2 and 1, respectively while the internet usage increased dramatically from 7 to 11.