The line graph illustrates the amount levels of fossil fuels in the years after 1980 in the European Countries.
According to the line graph, the number level of petroleum had enormous tones, at nearly 100 tones in 1980. While the proportion of coal was about 80 tonnes in 1980, the number of tonnes of natural gas was the lowest level with 40 tonnes.
There was a rapid increase measured in tones of petroleum from 95 to about 130 tonnes in the last 3 years. The production levels of petroleum continually stayed unchanged at 130 tonnes from 1983 to 1987. However, there was a dramatic fall at 90 tonnes. After that, it fluctuated between 90 and 120 tonnes.
There was a downward trend of measuring in tonnes of coal. The number of coal remained stable at 80 for about 4 years from 1981 to 1984; whereas it declined significantly in 1985, at nearly 50 tonnes. Therefore, the production levels of coal was more and more gone down over the 10 years, at 40 tonnes in 2000.
As not as these main fuels, natural had a small number of tonnes in measured, just 40 tonnes. The production levels of natural gas remained gradually by 16 years from 1981. A slightly increased proportion of the levels of natural gas was in 1997, it reached to 80 in 2000.