The graph depicts the ratio of junk food consumed by adolescents in Australia.

The graph depicts the ratio of junk food consumed by adolescents in Australia. In general, the statistics of pizza and hamburgers showed an upward tendency, whereas that of fish and chips went down. Specifically, in 1975, the consumption of fish and chips took the lion's share, at 100%, with 10 times as much as the data of the other two. During the next 10 years, after rising and falling erratically, the proportion of fish and chips still retained their initial position. Besides, the figures for hamburgers soared abruptly from 10% to more than 80% so it widened the space between itself and that of pizza, which swelled slightly by 33%. Moreover, the year 1995 observed a plummet from 95% to 50% in the fish and chips consumption pattern. In contrast, the percentage of hamburgers rose to reach the first place, with 100%, tailed by that of pizza, which surged to about 80%. Furthermore, the ratio of pizza and hamburgers levelled out at 83% and 100% respectively over a five-year period. Meanwhile, the statistics of fish and chips continued trending downwards.