The graph provides information about production of Petroleum fuel, Coal fuel and Natural gas in the UK during 19 years period.
Overall, Petroleum was the most popular main fuel for production in UK 1981 until 2000. However, the Coal fuel production fluctuated depends on year, and Natural gas production increased in the last 4 years.
To begin with, the most striking point was Petroleum fuel. It reached a peak in 1984 until 1986 almost 140 energy units production , than it decreased to 100 energy units. In fact, this fuel rose rapidly after 1991, and in the end of the 2000 it was around 140 energy units.
When it comes to Coal fuel which was fluctuated until 2000. Although, in 1984 it was the least popular fuel production in comparison with 2 others. It took less than 40 energy units, but than considerably increased rapidly to 6- energy units in 1986. Moving to Natural gas, this main fuel production in UK was for some energy units higher than Coal in 1984. But after steadily grew. Moreover, after 1991 it was went up to 80 energy units and 100 energy units in 1996 and 2000 respectively.