This line chart shows the information about U.S. Cigarette prices vs. consumption from 1970 to 2006. To begin with, we can see that there are two categories in comparison, which are cigarette consumption and average retail price per pack. According to the graph, for cigarette consumption, the highest number goes to 1980 with the figure of 32 billion dollars, while the lowest number goes to 2006 with the figure of 18 billion dollars. Last but not the least, for average retail price per pack, the highest number goes to 2004 with the figure of 3.9 dollars, while the lowest number goes to 1982 with the figure of 1.3 dollars. In conclusion, there is a negative relationship between the trends of the two lines.