The chart illustrates how different energy resources were allocated to manufacture in the country from 1985 to 2003.
Overall, the proportion of energy generated by oil, nuclear and other renewables decreased throughout the period, while the reverse was true for the figures for the rest of energy sources. Another key feature worth- mentioning is that oil energy remained at its highest levels in both years, whereas energy produced by nuclear and hydro made up a smaller proportion than other energy resources.
Oil energy accounted for the largest of total energy production in the country in 1985, at 52%, and this figure recorded a significant decline to 39% by 2003. Conversely, natural gas generated 13% in the first year, rising to 23% at the end of the period, ranking the second highest sources of energy manufacture.
In terms of the remaining energy resources, coal and nuclear experienced the opposite trend, with the former surging from 8% in 1985 to 22% in 2003 and the latter considerably falling from 22% to just 8% over the same period. Meanwhile, hydro production maintained its stable share of just 4% across both years, while other renewables increased from 1% to 4% in the end.