The line graph displays the number of visitors to three London musuems, namely British Musuem, Science Museum, and Natural History Museum, from June to September in 2013. Across this data collection period, the number of people visiting British Musuem remains outnumbering the other two while the number of people visiting Science Museum keeps at the bottom result.
For British Musuem, it reaches its peak level in July from about 600 thousands to approximately 740 thousands visitors. It then has an obvious plummet in August with around 500 thousands people going to this musuem. However, it has another rocket increase in September to around 650 thousands visitors.
For Science Museum, the result is relavetively steady. It has a constand decline from 400 thousands in June to 300 thousands in August. Yet, it has a sudden climb in September, reaching approximately 450 thousands people.
For Natural History Museum, it has a huge drop from 550 thousands in June to 370 thousands in July. And it gradually increse to 380 thousands in August and 480 thousands in September.
Viewing the whole picture of the changes of number of visitors to these three London museums in Summer, we can see that August seems to be a month that all musuems has relatively poor performance. Despite this, September seems to be a month that all musuems have a significant improvement.