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Balances and Transactions in Foreign Currencies (Tables) | 12 Months Ended
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Dec. 31, 2017
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Summary of Assets, Liabilities and Transactions in Foreign Currencies | As of December 31, 2017 and for each of the three years ended on December 31, 2017, assets, liabilities and transactions denominated in foreign currencies, expressed in Mexican pesos (contractual amounts) are as follows:
|  | Assets |  |  | Liabilities |
Balances |  | Short-Term |  |  | Long-Term |  |  | Short-Term |  |  | Long-Term |
As of December 31, 2017 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. dollars |  | Ps. | 69,772 |  |  | Ps. | 148 |  |  | Ps. | 4,241 |  |  | Ps. | 73,115 |
Euros |  |  | 25 |  |  |  | — |  |  |  | 1,881 |  |  |  | 23,573 |
Other currencies |  |  | 46 |  |  |  | 1,674 |  |  |  | 340 |  |  |  | 1 |
Total |  | Ps. | 69,843 |  |  | Ps. | 1,822 |  |  | Ps. | 6,462 |  |  | Ps. | 96,689 |
As of December 31, 2016 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. dollars |  | Ps. | 17,796 |  |  | Ps. | 696 |  |  | Ps. | 4,540 |  |  | Ps. | 88,611 |
Euros |  |  | 246 |  |  |  | — |  |  |  | 345 |  |  |  | 21,774 |
Other currencies |  |  | 5 |  |  |  | 1,581 |  |  |  | 246 |  |  |  | 1,190 |
Total |  | Ps. | 18,047 |  |  | Ps. | 2,277 |  |  | Ps. | 5,131 |  |  | Ps. | 111,575 |
Transactions |  | Revenues |  |  | Other Operating Revenues |  |  | Purchases of Raw Materials |  |  | Interest Expense |  |  | Consulting Fees |  |  | Asset Acquisitions |  |  | Other |
For the year ended December 31, 2017 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. dollars |  | Ps. | 1,909 |  |  | Ps. | 1,677 |  |  | Ps. | 16,320 |  |  | Ps. | 2,534 |  |  | Ps. | 267 |  |  | Ps. | 272 |  |  | Ps. | 4,052 |
Euros |  |  | — |  |  |  | 2 |  |  |  | 87 |  |  |  | 452 |  |  |  | 23 |  |  |  | 4 |  |  |  | 20 |
Other currencies |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 12 |  |  |  |  |  |  |  | — |
Total |  | Ps. | 1,909 |  |  | Ps. | 1,679 |  |  | Ps. | 16,407 |  |  | Ps. | 2,986 |  |  | Ps. | 302 |  |  | Ps. | 276 |  |  | Ps. | 4,072 |
For the year ended December 31, 2016 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. dollars |  | Ps. | 4,068 |  |  | Ps. | 1,281 |  |  | Ps. | 14,961 |  |  | Ps. | 3,173 |  |  | Ps | .182 |  |  | Ps. | 407 |  |  | Ps. | 3,339 |
Euros |  |  | 6 |  |  |  | — |  |  |  | 104 |  |  |  | 355 |  |  |  | 43 |  |  |  | — |  |  |  | 5 |
Other currencies |  |  | 29 |  |  |  | 150 |  |  |  | — |  |  |  | 150 |  |  |  | 185 |  |  |  | — |  |  |  | 4 |
Total |  | Ps. | 4,103 |  |  | Ps. | 1,431 |  |  | Ps. | 15,065 |  |  | Ps. | 3,678 |  |  | Ps. | 410 |  |  | Ps. | 407 |  |  | Ps. | 3,348 |
For the year ended December 31, 2015 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. dollars |  | Ps. | 1,891 |  |  | Ps. | 472 |  |  | Ps. | 11,710 |  |  | Ps. | 1,973 |  |  | Ps. | 34 |  |  | Ps. | 75 |  |  | Ps. | 2,035 |
Euros |  |  | — |  |  |  | 1 |  |  |  | 2 |  |  |  | — |  |  |  | 2 |  |  |  | — |  |  |  | 37 |
Other currencies |  |  | 20 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 204 |
Total |  | Ps. | 1,911 |  |  | Ps. | 473 |  |  | Ps. | 11,712 |  |  | Ps. | 1,973 |  |  | Ps. | 36 |  |  | Ps. | 75 |  |  | Ps. | 2,276 |
Summary of Exchange Rates | Mexican peso exchange rates effective at the dates of the consolidated statements of financial position and at the issuance date of the Company’s consolidated financial statements were as follows:
|  | December 31, |  |  | April 20, |
|  | 2017 |  |  | 2016 |  |  | 2018 |
U.S. dollar |  |  | 19.7354 |  |  |  | 20.6640 |  |  |  | 18.0333 |
Euro |  |  | 23.5729 |  |  |  | 21.7741 |  |  |  | 22.9066 |

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