This line chart shows the information about the number of meals for fast food and sit-down restaurant from 1970 to 2000. To begin with, we can see that for fast food meals, the number increased from 20 in 1970 to 28 in 1980, and then increased dramatically to 85 in 2000. According to the graph, for saitdown restaurant, the number increased from 20 in 1970 to 32 in 1980 and then increased slightly to 50 in 2000. Last but not the least, before 1980, people prefer to have meals in a sitdown restaurant, while after that people prefer to have fast food. In conclusion, this is an interesting graph, and in order to get more information, we need a further research on that.