13. Sales
| (in TEUR) | 2007 | 2006 |
| Contract revenue recognized as Sales in the current period | 2,224,624 | 1,778,173 |
| Revenue recognized due to After-Sales service | 781,117 | 609,011 |
| Other | 276,747 | 322,502 |
| 3,282,488 | 2,709,686 |
| (in TEUR) | 2007 | 2006 |
| Contract revenue recognized as Sales in the current period | 2,224,624 | 1,778,173 |
| Revenue recognized due to After-Sales service | 781,117 | 609,011 |
| Other | 276,747 | 322,502 |
| 3,282,488 | 2,709,686 |