The line graph illustrates the frequency with which teenagers consumed three types of fast food—pizza, fish and chips, and hamburgers—between 1985 and 2015.
Overall, it is clear that hamburgers and pizza saw a substantial rise in popularity over the thirty-year period. Conversely, the consumption of fish and chips, which was the most popular choice at the start, saw a significant decrease by 2015.
In 1985, fish and chips was the most consumed fast food, with teenagers eating it 100 times per year. However, this figure fluctuated, dropping to 80 in 1995, rising slightly to 90 in 2005, and finally plummeting to 40 by 2015. In contrast, hamburger consumption started at a low of 10 times per year in 1985 but grew steadily to 40 in 1995, reaching a peak of 100 in 2005 and ending at 105 in 2015.
Pizza consumption also followed an upward trend, starting at just 5 times per year in 1985. It rose sharply to 60 in 1995 and reached 80 in 2005, where it remained stable until 2015. By the end of the period, hamburgers had become the most frequently consumed fast food among teenagers.