I read a paper studying the correlation between rates of cigarette smoking and lung cancer incidence in the United States. It seems pretty common knowledge today that cigarettes contribute to cancer, but this paper offered some insights into the issue I had previously not thought of. The paper, found here, analyzes these two things based on different birth cohorts and provides figures showing lung cancer incidence from the early 20th century, lung cancer based on different cohorts and smoking rates in teenagers. However, the figures offer an overly specific analysis with too narrow of a date ranges to show the change in lung cancer incidence in relation to change in smoking rates nationally. In order to get a better visual of how the rates mimic each other I decided to create a figure presenting smoking rates and lung cancer incidence for both males and females in the United States from 1965-2005. The data for smoking came from the CDC and the data for lung cancer came from the American Lung Association.
Here are the figures I used before I combined the lines.
First the lung cancer figure from the American Lung Association: