The line graph illustrates changes in the quantity and types of junk food consumption among Australian adolescents between 1975 and 2000. Overall, the surveyed period witnessed an upward trend in the number of times pizza and hamburgers absorbed by Australian juveniles while the opposite was true for fish and chips.
In 1975, fish and chips were the most consumed fast food in Australia by teenagers, about 100 times, nearly ten times higher than pizza and hamburgers (about 5 times annually), before falling to approximately 80 times in 1985. From 1985 to 1995, there was a drastic rise in the number of times Australian adolescents ate hamburgers, from 60 times in 1985 annually to about 85 times in 1995.
From 1985 to 2000, the figure for hamburgers increased gradually before overtaking the first place in junk food consumption per year among Australian teenagers in 1990, at around 90 times then remained at 100 times per year between 1995 and 2000. Furthermore, the period 1990-2000 saw a significant drop of the number of times a year fish and chips were eaten from around 62 times in 1990 to nearly 40 times in 2000, twice lower than pizza (a little over 81 times).