The diagram shows the number of students enrolled in two different schools. Overall, we can see that the Litchfield School shows a surge within the last three years which can be seen as the opposite of the number of students being enrolled at the Riverside School that has been declining for three years.
To begin with, the Litchfield School started off strong in approximately 1000 number of students with a stable rise up until 1200 in the middle of 2013. It then shows a peak with the highest number of 1500 in 2014 which is a complete opposite of what it looks like for the Riverside School. Riverside started off at 800 students being enrolled then it shows a decline in 2013 and dropped at 500 students in 2014 which almost the half of students being enrolled at the Litchfield School.
From the diagram, we can learn that the Litchfield School has took their job on assisting their students the best they can which encouraged the future children on enrolling themselves as the part of Litchfield School instead of the Riverside