The given line graph provides information about the management of lubricant in four diverse countries over a period of 60 years from 1960 to 2006 as a proportion of fully using power within each region.
In general, mostly the percentage of total using oil in natives saw a downward trend across the countries over the period shown. In addition, Turkey experienced a significant increase in reliance on oil throughout most of the period while the other three countries witnessed varying degrees of decline.
As it is presented in the diagram, the proportion of using the lubricant was the most unpopular in 1966 with 60% of Turkey, compared to 90% for Italy. A significant increase to 80% was seen in the management of oil in Turkey from 1966 to 1991, then it continued to rise slightly by about 10% at the end of the period. However, Italy’s operation of oil grew rapidly to reach a peak of about 95% in 1976, followed by a drop to just the original level and it fluctuated around 5% until 2006.
Looking at the other attractions, it is crystal clear that oil treatment in Sweden reached 80% and later reached 70% for Iceland in 1966. The proportion of petroleum service in Sweden halved to 40% from 1960 to 1986. After that, this figure for Iceland dramatically decreased around 40% until 1986. From the year 1986 onwards, the percentage of lubricant management in Iceland slowly increased to 33% in 1996 before falling to 20% in 2006. During the same period, the operation of oil in Sweden witnessed a slight drop to 35% at the end of the period.