| 28 | Net sales |
| December 31, 2017 |
December 31, 2016 |
December 31, 2015 |
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Gross revenue from sales of products and services |
15,835,343 | 14,673,819 | 14,387,630 | |||||||||
|
Construction revenue |
351,193 | 339,025 | 408,086 | |||||||||
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Indirect taxes and deductions (i) |
(2,604,073 | ) | (2,494,705 | ) | (2,440,180 | ) | ||||||
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Net revenue |
13,582,463 | 12,518,139 | 12,355,536 | |||||||||
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| (i) | On April 1, 2017, the effective tax rate ICMS – State tax on gas sales was changed from 12% to 15%. |