The above complex diagram illustrates average monthly climate and swimming suit sales in New York for the first six months of 2012. The two vertical axes depict the average temperatures in Fahrenheit and revenue in hundreds of thousands of US dollars, while the horizontal axis demonstrates the months from January to June.
It is immediately noticeable that the majority of people buy bathing suits in April when the temperature is around 50 °C, while it has gradually decreased in June because of the overheating and people have stopped buying clothes. By analyzing the diagram, it shows that, when the heat is steady, the clothing sale has dramatically increased from January to March.
In conclusion, we can say that people bought bathing suits when the temperature moderately increased, which means people are having fun in the summer.
