The line graph illustrates how much reusable power was used compared to the assumption power of 6 European countries from 1971 to 2006.
Overall, there was an increase in five countries Denmark, France, Germany, United Kingdom and United States, with the dramatic change was seen in United States, while Finland Started at the highest amount, witnessing a slightly decrease in the last year of the period.
The amount of infinite power was consistently increased without fluctuation in France, United Kingdom and Germany during the years examined. Despite that, United Kingdom was always at the lowest number of just over 5 compared to 13 and just under 15 of Germany and France respectively.
Finland started at the highest peak of 25, but slightly decrease to 23 at the end of the period. The figure for Denmark and United State fluctuated from 1971 and experience similar amount at about 22 in 2006.
