The line graoh below illustrates proportion of fast food consumption in the UK in the 1970 and its projection to 1990. In addition, it is measured by grams per week.
Overall, it is crystall clear that hamburger, fish and chips is experienced growth, while pizza saw a fall than in the start of the period.
To begin with, the amount of hamburgers was the least relating to others and accounted for about 30 grams per 7 days at the beginning of the period. However, after passing 20 years, their amount increased sharply and reached its peak to 290. There was a slight rise until 1985 at 110 grams and after this it experienced considerably increase until the end of the period. This trend is also followed by fish and chips, and they are saw a slight increase until 1980 from 80 to 145 and dramatically grew up until the end, at approximatelly 500.
To put it differently, there is gradual decline in pizza from 300 to 210 in the period from 1970 to 1980 respectively and it is flactuated until the end of the graph and stabled the same level as 1980. In addition, pizza started with more amount of consumption, however it is felt to the 210 and was the least one in this graph.