The picture illustrates how much renewable energy was used accounting for the total energy in six different countries namely Finland, Denmark, France, Germany, the US, and the UK over a 40-year period, commencing from 1971.
Overall, there was an increase in renewable energy usage, accounting for the total energy in all the surveyed nations, with the UK witnessing the most pronounced rise. Also of note is that, Finland consistently had the highest figures throughout the provided timeline.
In 1971, Finland had the most significant figures at almost 25%, which headed the list of the use of renewable energy among six countries, however, between 1986 and 1991, the figures for Finland fluctuated, falling to about 16% and then rising to 23% in 2011. The most substantial growth was clearly witnessed in the case of the US, despite starting low close to zero in 1971, it soared to 18 percent in 2011, ranking almost at the top of the entire chart, just behind Finland. A similar change, but to a lesser extent, was seen in 15% in the amount of renewable energy of total energy used in Denmark in 1971, but the proportion of renewable energy used in Denmark fluctuated widely in an upward trend to reach a high of 17% after 40 years.
Regarding categories with lower data, Germany’s and France’s percentages of the usage of renewable energy accounted for the total energy began at 5% and 8% in 1971 and rose to roughly 14% and 15% in 2011. Similarly, in 1971, only 1% of the percentage of the UK renewable energy usage in 1971; after 40 years, this number steadily increased to 5%.