The line graph illustrates the figures for three wild animal species between 2017 and 2022.
Overall, it can be seen that the number of bears was an upward trend, while that of Dolphins and Whales was a downward tendency.
In 2017, the number of bears was the lowest at approximately 10, which increased significantly to 60 one year later. The opposite was true for Dolphins at nearly 160, about 75 higher than that of Whales, and both the figures for Dolphins and Whales decreased considerably to 80 and 50 respectively in 2018.
The data of whales peaked at 100 in 2020 before declining to 80 in 2020. The figures for bears witnessed a continue rise by 90 in 2019 and 120 in 2020, which overpassed that of Whales. In addition, the number of Dolphins decrease gradually from 30 in 2019 to below 20 in 2020. In the end of the period, there was a change in position of three types of animals, the highest was figures for Dolphins reached 180, while that of Dolphins was zero, the number of whales remained unchanged at second.