The line graph illustrates the total weekly consumption of fast food in the UK between 1970 and 1990, measured in grams. Overall, there was a general downward trend in pizza consumption across the period, which made pizza fall from the highest to the lowest rank; conversely, the intake of hamburgers and especially fish and chips experienced a consistent upward trend over the same period, with the latter eventually becoming the dominant fast food.
In 1970, people in the UK consumed about 300 grams of pizza per week. However, this figure gradually declined over the next 15 years. Although it experienced a slight uptick by 1990, it lost the leading position and fell to the lowest point among the three categories. By the end of the period, the weekly amount of pizza intake had dropped to roughly two-thirds compared with its initial level.
With only about 20 grams consumed per week, hamburgers ranked last within the three groups in 1970. It then rose steadily until 1985; thereafter, it had a sharp increase in the last 5 years, reaching nearly 300 grams per week. To estimate, the number was around 15 times higher than at the beginning. Furthermore, the most significant change was observed in fish and chips, which ranked second in 1970 with a consumption rate of approximately 80 grams. Indeed, its intake increased dramatically and finally overtook pizza to reach the peak at 500 grams per week, which was 5 times greater than the original figure.
In conclusion, pizza consumption declined significantly; meanwhile both hamburgers and fish and chips saw substantial increases, with the latter becoming the most popular fast food by 1990.