The bar graph illustrates spending on three types of fast food in the UK by different income groups in 1990, while the line graph shows the popularity of these foods between 1970 and 1990.
Overall, people with higher incomes spent more money on fast food, especially hamburgers. In addition, fish and chips became increasingly popular over time, whereas pizza showed a slight decline.
In 1990, high-income individuals spent the most on hamburgers, at just over 40 pence, compared with around 18 pence on fish and chips and about 20 pence on pizza. Average earners also preferred hamburgers, spending roughly 32 pence, while expenditure on fish and chips and pizza was lower. By contrast, low-income groups spent the least overall, with fish and chips being slightly more popular than hamburgers and pizza.
According to the line graph, fish and chips consumption rose dramatically from about 80 units in 1970 to around 500 in 1990. Hamburger popularity also increased steadily, particularly after 1985. However, pizza consumption decreased gradually from approximately 300 units to just above 200 over the same period.