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. 2023 Sep 9;9(10):e19309. doi: 10.1016/j.heliyon.2023.e19309

Fig. 2.

Fig. 2

Financial indicators and selected costs (2000–2020).

Source: Petrobras, ANEEL, EPE, several annual reports (2000–2020). Created by the authors. The units were converted without harming the absolute quantitative measures so that they could be compared on the same axis and could be associated