A line graph delineates the produced amount of fuel in the UK divided into 3 kinds such as petroleum, coal and natural gas, from 1981 to 2000.
Overall, there was an ascending trajectory in all datasets, with the most drastic increase witnessed in the figure for petroleum production, while the reverse was true for that of coal. In addition, the data for petroleum consistently had by far the highest throughout the period.
The amount of produced petroleum started at nearly 90 in 1981, after which it saw stability at just under 140 between 1983 to 1988, before decreasing dramatically to exactly 100 in the next three years. Subsequently, it is clear to note that there was a slight fluctuation and an excessive recovery to reach around 150 in the year-end examined. A similar change, but to a lesser extent, can be seen in the figure for natural gas, which witnessed an exponential and continuous hike from roughly 40 to correctly 80 in the 19-year period of time. Finally, around 80 of coal was produced, with a subsequent significant deterioration to under 40 in 1984 and a slight recovery to 60 after. Moreover, there was a steady decrease observed in this data from 1986 onwards.