| 28. | Revenue |
Details of revenue for the years ended December 31, 2015, 2016 and 2017 were as follows:
| 2015 | 2016 | 2017 | ||||||||||
| (in millions of Won) | ||||||||||||
|
Sale of goods |
₩ | 47,018,466 | 43,683,169 | 51,357,709 | ||||||||
|
Services |
2,489,447 | 2,276,534 | 2,064,583 | |||||||||
|
Construction revenue |
8,546,454 | 6,497,723 | 6,299,483 | |||||||||
|
Rental income |
11,757 | 8,930 | 6,370 | |||||||||
|
Others |
456,144 | 473,415 | 458,722 | |||||||||
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| ₩ | 58,522,268 | 52,939,771 | 60,186,867 | |||||||||
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