The line graph illustrates the changes in the consumption of three types of fast food by Australian teenagers between 1975 and 2000.
Overall, it is clear that while the popularity of fish and chips decreased over the period, the consumption of both hamburgers and pizza rose significantly. A notable shift in preferences among teenagers is also observed throughout the 25-year period.
In 1975, fish and chips were by far the most commonly eaten fast food, being consumed 100 times per year, whereas the figures for pizza and hamburgers were much lower, at around 5 and 10 times respectively. Between 1975 and 1980, the consumption of fish and chips saw a slight decline, followed by a brief recovery in 1985. However, from that point onward, the figure dropped steadily, reaching just under 40 times a year by 2000.
In contrast, the consumption of pizza and hamburgers grew consistently. Pizza saw a steady rise from around 5 times per year in 1975 to approximately 80 times in 1995, after which the number remained unchanged until 2000. The most significant increase was seen in the consumption of hamburgers. Starting at about 10 times annually, it surged to around 82 times in 1985 and continued to rise, finishing at 100 times per year in 2000 — the same figure that fish and chips recorded at the beginning of the period