The line chart illustrates the proportion of renewable energy usage in 5 different countries between 1971 and 2011.
Overall , nearly all nations showed a net increase, which contrasted with Finland, where a downward trend was observed. Additionally, Finland remained in the top position throughout the course of the period, while the lowest percentage of renewable energy used was witnessed in the UK.
Regarding 3 countries, including France, Germany, and The UK, in which France and Germany followed the same trajectory relatively. While France started with around 8%, more than Germany by about 3%, the UK saw little of the use of renewable energy, at roughly 1% at the outset. Moreover, The UK increased gradually to approximately 5% at the end of the period, whereas France and Germany remained stable in the first 20 years before finishing at about 14% and 13% respectively.
Concerning the remaining nations, Finland registered the highest point, at almost 25%, more significant than the US’s around 2%, and Denmark’s roughly 15% at the beginning. This figure for Finland reached the low of approximately 16% at 1991 after substantial fluctuations, meanwhile Denmark recorded a more moderate decrease, at precisely 10% at the same time, and both reached roughly 23% and 17% respectively. Finally, the US showed the most substantial increase in all countries and about 18% of renewable energy was witnessed in 2011.