The bar graph illustrates the expenditure on fast foods per person per week by three income groups in Canada, and the line chart represents the trend in consumption of fast foods from 1970 to 1990.
Overall, hamburgers shows the highest expenditure per person per week in two groups of people who have high or average income. Also, the amount of grammes in consumption of hamburgers increased fivefold throughout the period surveyed, compared with the change of fish and chips or pizza.
According to the bar graph, the figure for money spent on hamburgers and pizza by high and average income groups is just above 40 pence and about 20 pence per person, respectively. Conversely, fish and chips is in first place in the low income group at around 17 pence, followed by hamburgers.
In addition, the consumption of hamburgers increased significantly from around 100 grammes to over 500 grammes during the 20 years, and it overtook the amount of fish and chips between 1980 and 1985. However, the consumption of fish and chips gradually decreased by 100 grammes by 1985. The figure for pizza slowly grew, so it reached a peak of nearly 300 grammes in 1990.