The given chart illustrates production levels of the main fuels in the UK between different years start with 1981 to 2000.
All in all,production of three different fuels such as coal, petroleum, natural gas. The big change is with petroleum and illustrates a downward tend and the low change is petroleum.
First of all, the natural gas started at 40 energy units in 1981, before 1991 was stabilized and significantly increased to 100 units. The coal started at 80 units to 1984 was steadily declined to 40 units. To 1986 is gradually rose to 60 energy units. And to drop slightly and remain constant to 40 in 2000.
The third one is petroleum, petroleum was 90 and jump to 140 before 1987. To 1991 fall to 100, after level off at 140 units. Stay stable to 2000.
