20 Deferred revenue
| 2015 | 2016 | ||
CHF 1,000 | Current | Non-current | Current | Non-current |
Advance payments received related to product sales to be recognized upon delivery or customer’s acceptance | 8,738 | 20,759 | 12,119 | 46,945 |
Deferred income related to service contracts | 21,894 | – | 21,235 | – |
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Construction contracts in progress |
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|
|
|
Aggregate amount of cost incurred and recognized profits | (7,066) | – | (1,009) | – |
Amounts of advances received | 7,672 | – | 1,034 | – |
Subtotal construction contracts in progress | 606 | – | 25 | – |
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|
|
|
Balance at December 31 | 31,238 | 20,759 | 33,379 | 46’945 |
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Increase |
| 7,191 |
| 28,571 |
Acquisition through business combination |
| 20 |
| 32 |
Translation differences |
| (586) |
| (276) |
Total change (current and non-current) compared with previous year |
| 6,625 |
| 28,327 |
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