The line graph illustrates the changes in the frequency of consumption of three types of fast food—hamburgers, pizza, and French fries—by Australian teenagers between 1990 and 2020.
Overall, the popularity of hamburgers and pizza increased steadily over the 30-year period, while the consumption of French fries saw a significant decline. By 2020, hamburgers had become the most frequently consumed fast food item among Australian teens.
In 1990, French fries were the most popular, eaten around 70 times, whereas pizza and hamburgers were much less consumed, at approximately 5 and 10 times respectively. However, both pizza and hamburger consumption rose steadily, with hamburgers overtaking French fries around 2007 and reaching a peak of 90 times by 2020. Pizza followed a similar trend, plateauing briefly from 2010 to 2015 before climbing to 80 times in 2020.
In contrast, French fries consumption steadily declined throughout the period, dropping sharply to only 10 times by 2020.