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Valuation of derivatives, interest cost from labor obligations and other financial items, net | 12 Months Ended
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Dec. 31, 2018
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Valuation of derivatives, interest cost from labor obligations and other financial items, net | 21. Valuation of derivatives, interest cost from labor obligations and other financial items, net For the years ended December 31, 2016, 2017 and 2018, valuation of derivatives and other financial items are as follows:
|  | For the years ended December 31, |
|  | 2016 |  |  | 2017 |  |  | 2018 |
Controlling interest: |  |  |  |  |  |  |  |  |  |  |  |
(Loss) gain in valuation of derivatives, net |  | Ps. | (9,622,233 | ) |  | Ps. | 8,192,567 |  |  | Ps. | (4,686,407 | )
Capitalized interest expense (Note 10 d) |  |  | 2,861,307 |  |  |  | 2,875,034 |  |  |  | 2,020,288 |
Commissions |  |  | (2,034,972 | ) |  |  | (1,263,701 | ) |  |  | (1,901,473 | )
Interest cost of labor obligations (Note 17) |  |  | (9,178,513 | ) |  |  | (8,722,611 | ) |  |  | (9,968,526 | )
Interest expense on taxes |  |  | (245,922 | ) |  |  | (1,503,981 | ) |  |  | (555,921 | )
Dividend received (Note 4) |  |  | 5,740,092 |  |  |  | 2,385,559 |  |  |  | 2,605,333 |
Gain on net monetary positions (Note 2i, c) |  |  | — |  |  |  | — |  |  |  | 4,429,145 |
Other financial cost |  |  | (3,745,600 | ) |  |  | (3,906,627 | ) |  |  | (2,118,755 | )
Total |  | Ps. | (16,225,841 | ) |  | Ps. | (1,943,760 | ) |  | Ps. | (10,176,316 | )

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