The given figure demonstrates the renewable energy usage in certain areas between the period of 1971 and 2011. There are 6 main countries concluded in this graph; Finland, Denmark, France, Germany, the United States, and the United Kingdom.
At the first galance, there are not many obvious changes. However, Finland and Denmark started by decreasing their consumption in 1971 while other nations began to rise the numbers. This first 2 nations, Finland and Denmark faced occational changes between upwards and downwards. In France, the trend was quite noticeable that was rising. It was decreased only once around the year of 1986 and hit the peak later in 2006. Germany also have the similar traits with France since their trends are nearly the same. Nevertheless, Germany hit its peak in 2010 ( approximetely). The most surprising alternation was in the trend of the United States since it increased by the sixthfold. In United Kingdom, the line started from nearly 2 and reached 7 at the end, which was a tiny change, but noticeable.
Among all, the United States have the higest increased percent while the other nations have a small amount in that.