The line chart delineates the number of products being transported in the United Kingdom by four disparate types of transportation from 1974 to 2002, quantified in million tonnes.
Overall, the quantity of goods carried on roads was consistently higher than the others, whereas transporting through pipelines was the least favoured. Additionally, while most cohorts witnessed an eventual increase in the total amount of goods, railway nearly showed no growth throughout.
Regarding the number of products transported on roads, the data documented a slight fluctuation at around 70 in the first 8 years, prior to gradually climbing to over 80 between 1990 and 1994. Thereafter, the figure receded to below 80 after 1994 and experienced a surge to nearly 100 in the end of the period, which maintained a strong margin with other sections. Meanwhile, the statistics for the amount of goods transferred through pipelines recorded an escalation from approximately 5 to roughly 17 between 1974 and 1982, which remained nearly intact for the following 15 years, before surpassing 20 and ending with the same number in 2002.
In the first 4 years, transportation by waterway and railway showed a comparable figure, at roughly 40. However, the figure for products carried and transmitted on water stayed consistently at approximately 60 from 1982 to 1996, which ultimately finished at around 65.
In contrast, whilst the total amount of goods transported by trains dropped and hovered around 30 between 1985 and 1995, the number ultimately bounced back to its initial point, which was about 40.