The graph shows Underground Station passenger numbers in London Summarise the information by selecting and reporting the main features and make comparisons where relevant

The line graph represented how many passengers run through in Underground Station by hours in London. As we can be seen the number of commuters fluctuated, moreover, particularly highest was 400 people, lowest was 100.
At 6 a.m only 100 people took the subway, furthermore, the number of passengers had sharply rosed by four-fold at 8 o'clock. However, this increase had to keep dropping less than 200 people next two hours. Additionally, the number of passengers constantly enlarged by 100 until afternoon (2 p.m). This constant rise dramatically dropped next 2 hours again.
By 16 o'clock, although people who took the subway had reached the lowest (100), they overtook almost 400 within 2 hours. In addition, the number of commuters had reached nearly 100 people at 20 o'clock. However, the commuters slightly fluctuated at the end of the period.