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The image shows fuel production levels (in tonnes) for petroleum, coal, and natural gas from 1981 to 2000. Petroleum: 1981-100, 1982-102, 1983-102, 1984-103, 1985-102, 1986-100, 1987-90, 1988-85, 1989-85, 1990-83, 1991-85, 1992-87, 1993-85, 1994-90, 1995-100, 1996-108, 1997-108, 1998-110, 1999-106, 2000-103. Coal: 1981-120, 1982-125, 1983-125, 1984-125, 1985-125, 1986-120, 1987-120, 1988-100, 1989-90, 1990-95, 1991-90, 1992-90, 1993-65, 1994-60, 1995-60, 1996-62, 1997-63, 1998-60, 1999-50, 2000-45. Natural gas: 1981-0, 1982-0, 1983-0, 1984-0, 1985-0, 1986-10, 1987-10, 1988-15, 1989-15, 1990-30, 1991-35, 1992-33, 1993-30, 1994-30, 1995-32, 1996-33, 1997-27, 1998-25, 1999-20, 2000-25.
Given the complexity of the image, the above description may not be entirely accurate.
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The line chart illustrates the output volumes of main energies in an Europe nation between 1981 and 2000.
As can be infered from the graph, while the level of coal witnessed a downward trend, the figure of natural gas showed a slight increase before rising sharply by the end of the 20th century. In addition, petroleum accounted for the majority of energies produced in this country.
Initially, the data for coal registered about 80 tonnes in 1981, which then decreased to the neighborhood of 40 tonnes in 2000. By contrast, an upward tendency was seen in the production level of natural gas, with being 40 tonnes and about 85 tonnes in 1981 and 2000, respectively.
For the remaining fuel, petroleum, the volume was 97 tonnes in 1981, and was 120 tonnes in 2000. Despite some significant changes throughout the period, petroleum was recorded as the most productive engergies compared to the two mentioned powers.
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