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Statements of Changes in Equity - BRL (R$) R$ in Thousands | Capital stock | Legal reserve | Investment reserve | Additional dividend proposed | Retained earnings | Other comprehensive loss | Total
--- | --- | --- | --- | --- | --- | --- | ---
Beginning balance at Dec. 31, 2014 | R$ 10,000,000 | R$ 758,141 | R$ 2,914,008 | R$ 22,002 | R$ 0 | R$ (389,748) | R$ 13,304,403
Net income for the year |  |  |  |  | 536,279 |  | 536,279
Actuarial gains (losses) |  |  |  |  |  | 36,366 | 36,366
Total comprehensive income for the year |  |  |  |  | 536,279 | 36,366 | 572,645
Legal reserve |  | 26,814 |  |  | (26,814) |  | 0
Interest on capital (R$0.1863 per share) |  |  |  |  | (127,366) |  | (127,366)
2014 additional proposed dividends, approved (R$0.0554 per share) |  |  |  | (22,002) |  |  | (22,002)
Additional proposed dividends |  |  |  | 22,527 | (22,527) |  | 0
Withholding income tax on interest on capital attributable as minimum mandatory dividends |  |  |  | (11,074) |  |  | (11,074)
Transfer to investments reserve |  |  | 359,572 |  | (359,572) |  | 0
Ending balance at Dec. 31, 2015 | 10,000,000 | 784,955 | 3,273,580 | 11,453 | 0 | (353,382) | 13,716,606
Net income for the year |  |  |  |  | 2,947,098 |  | 2,947,098
Actuarial gains (losses) |  |  |  |  |  | (472,266) | (472,266)
Total comprehensive income for the year |  |  |  |  | 2,947,098 | (472,266) | 2,474,832
Legal reserve |  | 147,355 |  |  | (147,355) |  | 0
Interest on capital (R$1.0240 per share) |  |  |  |  | (699,936) |  | (699,936)
2015 additional proposed dividends, approved (R$0.0330 per share) |  |  |  | (11,453) |  |  | (11,453)
Additional proposed dividends |  |  |  | 123,557 | (123,557) |  | 0
Withholding income tax on interest on capital attributable as minimum mandatory dividends |  |  |  | (60,838) |  |  | (60,838)
Transfer to investments reserve |  |  | 1,976,250 |  | (1,976,250) |  | 0
Ending balance at Dec. 31, 2016 | 10,000,000 | 932,310 | 5,249,830 | 62,719 | 0 | (825,648) | 15,419,211
Net income for the year |  |  |  |  | 2,519,310 |  | 2,519,310
Actuarial gains (losses) |  |  |  |  |  | 287,547 | 287,547
Total comprehensive income for the year |  |  |  |  | 2,519,310 | 287,547 | 2,806,857
Legal reserve |  | 125,965 |  |  | (125,965) |  | 0
Interest on capital (R$0.87539 per share) |  |  |  |  | (598,336) |  | (598,336)
2016 additional proposed dividends, approved (R$0.09176 per share) |  |  |  | (62,719) |  |  | (62,719)
Additional proposed dividends |  |  |  | 105,543 | (105,543) |  | 0
Withholding income tax on interest on capital attributable as minimum mandatory dividends |  |  |  | (52,004) |  |  | (52,004)
Transfer to investments reserve |  |  | 1,689,466 |  | (1,689,466) |  | 0
Ending balance at Dec. 31, 2017 | R$ 10,000,000 | R$ 1,058,275 | R$ 6,939,296 | R$ 53,539 | R$ 0 | R$ (538,101) | R$ 17,513,009

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