The provided line graph illustrates the enrollment trends of students from three countries–Iran, Greece, and Turkey–at Sheffield University over the period from 2005 to 2009.
Overall, Greek students had the highest enrollment at the beginning; however, their numbers dropped significantly over time. In contrast, the number of Iranian and Turkish students gradually increased, with Iranian students experiencing the most dramatic growth.
In 2005, Greece had the highest number of enrollments, nearly 180 students. However, a slight decline occurred the following year before the numbers plummeted to around 70 in 2007. After remaining stable for a year, the figure dropped further, ending at just above 40 students in 2009.
Conversely, the number of Iranian students started at just under 40 and then gradually rose over the following years, before surging to approximately 160 by the end of the period, making it the second-highest recorded figure. Turkish students, on the other hand, initially had the lowest enrollment, beginning with only 20 students. Nonetheless, their numbers rose substantially, reaching about 90 in 2007. This upward trend continued, and by 2009, the number of Turkish students climbed to around 120.