The provided charts delineate the weekly expenditure on fast foods across various income groups in Britain for the year 1990, alongside the trends in consumption of these foods from 1970 to 1990.
The analysis reveals that individuals within higher income brackets allocate more funds towards fast food compared to their lower-income counterparts. Additionally, the consumption patterns indicate a marked increase in the intake of hamburgers and pizza, juxtaposed with a decline in fish and chips consumption over the designated time frame.
Examining the bar chart, it is evident that expenditure on hamburgers was the highest among the high-income group, with approximately 40 pence allocated per person per week, followed by the average income group at around 25 pence, and finally, the low-income category spending approximately 15 pence. In contrast, fish and chips saw the highest expenditure from the average income group, at approximately 30 pence, whereas the low-income group spent around 20 pence and the high-income group allocated between 15 and 20 pence. Regarding pizza, the high-income earners spent about 20 pence, while average earners spent around 10 pence, and low-income individuals contributed roughly 5 to 10 pence towards their pizza purchases.
An analysis of the line graph underscores significant trends in fast food consumption from 1970 to 1990. Initially, consumption levels for pizza stood at 25 grams in 1970, with hamburgers at 50 grams and fish and chips dominating at 300 grams. Between 1975 and 1980, there was a noticeable escalation in the consumption of both pizza and hamburgers, culminating in pizza consumption reaching approximately 300 grams and hamburgers approximately 475 grams by 1990. In stark contrast, fish and chips exhibited a declining trend, decreasing from 300 grams in 1970 to 200 grams in 1985, followed by a marginal rebound to around 220 grams by 1990. This data suggests an evolving dietary preference among consumers during the examined period.