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The image illustrates renewable energy consumption in the USA from 1949 to 2008 measured in Quadrillion BTU. Total consumption begins at just above 2 in 1949, oscillates upward through the decades to peak above 7 in the early 2000s, before concluding over 6 in 2008. Hydroelectric power starts below 2 in 1949, displays mild fluctuations throughout the period, and closes slightly under 3. Wood initiates just above 0.5, showing gradual increase to 1980, fluctuating but generally stable throughout the latter years, ending at nearly 2 in 2008. Wind begins near 1990 well under 0.5, rising gradually to exceed 0.5 by 2008. Biofuels enter the scene post-2000, remaining below 0.5 but accumulating a minor uptick towards 2008.
Given the complexity of the image, the above description may not be entirely accurate.
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The chart depicts some information about the important sectors which made renewable energy and also provide about total consumption from 1949 to 2008 in the USA.
Overall, biofuels and wind are record the least usage of energy. While wood got stable portion around the period with only a slight increase, the hydroelectric power stayed fluctuated around year, and the total amount of the usage gets significant grew, before its getting unstable in the rest of the period.
In detail, biofuels just appear in 1990 and remain low from the next 20 years until its jump into appoximately 2 quadrillion. Wind in the other hand, start being usage in 2000, however its get sudden rose from the beginning.
At the other sectors, wood from next 2 decades did not shows significant increase, but, in 1980, the consume is grew a little before its coming back stable. Hydro power from its start just expand suddenly before gets fluctuated in roughly 1980 to 2000, its show the same pattern as the total amount of usage, which is increase and unstable
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