20 Deferred revenue
| 2014 | 2015 | ||
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 | 5,650 | 19,123 | 8,738 | 20,759 |
Deferred income related to service contracts | 19,167 | – | 21,894 | – |
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|
Construction contracts in progress |
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|
|
|
Aggregate amount of cost incurred and recognized profits | (3,720) | – | (7,066) | – |
Amounts of advances received | 5,152 | – | 7,672 | – |
Subtotal construction contracts in progress | 1,432 | – | 606 | – |
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|
|
|
Balance at December 31 | 26,249 | 19,123 | 31,238 | 20,759 |
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Increase |
| 25,359 |
| 7,191 |
Acquisition through business combination |
| 200 |
| 20 |
Translation differences |
| 1,074 |
| (586) |
Total change (current and non-current) compared with previous year |
| 26,633 |
| 6,625 |
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