The line graph depicts the number of subway passengers in three major cities – city A, city B, and city C – between 1980 and 2020.
Overall, the city A dominated the other cities, and it rose significantly over the entire period. The city B showed fluctuations, and the city C grew steadily between 1980 and 2020.
In 1980, the city A consisted of almost 130, and it steadily climbed to around 175 by 2000; however, it declined to about 160 by 2010, and then it significantly rose to almost 270 by 2020. Whereas the city C accounted for 55 subway passengers in 1980, and gradually grew roughly to 70 in 2000. After that, it dramatically surged to approximately 185 by 2020.
In Contrast, the city C represented to approximately 100 subway passengers in 1980, and then peaked at 125 in 2000. Ultimately, it plummeted to about 90 by 2020.
