The graph illustrates the oil consumption in Iceland, Sweden, Italy and Turkey, in 40-year period from 1966 to 2006, as a proportion of total energy use within each country.
Overall, Iceland and Sweden successfully controlled their oil usage, reducing it from 70% and 80% in 1966 to about 20% and approximately 35% in 2006, respectively. In contrast, Turkey’s oil consumption level increased significantly, rising from around 60% to about 90%. Meanwhile, Italy did not undergo significant changes, with its oil usage remaining just under 90%.
It can be clearly seen that Iceland sharply decreased its oil from 70% to 30% between 1966 and 1986. Follow that, from 1986 to 1996, it experienced a slight rise from 30% to around 33%, but ultimately reached just about 20% by 2006. Sweden followed a similar trend to Iceland, with a noticeable reduction from 80% to 40% between 1966 and 1986, and then a gradual decline to 35% by 2006.
However, Italy’s oil consumption level was at 90% in 1966, ending at around 85% in 2006. Turkey’s trend was completely different, with its oil usage level was starting at 60% in 1966 and managed to increase it intensely to 90% in 2006.