12. Trade accounts payable
Trade accounts payable consist of the following:
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December 31,
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2017
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2016
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2015
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Suppliers and contractors
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Ps.
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207,190
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Ps.
|
212,939
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Ps.
|
165,165
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Customer advances
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|
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42,317
|
|
|
39,892
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|
|
78,702
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Statutory employee profit sharing
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6,475
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|
|
9,242
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|
|
9,491
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|
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Ps.
|
255,982
|
|
Ps.
|
262,073
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Ps.
|
253,358
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