Eckdaten
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| | in Mio. € | 2006 | | 2007 | | 2008 | | 2009 | | 2010 |
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| | Umsatz | 2 436 | | 2 481 | | 2 537 | | 2 537 | | 2 433 |
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| | Anlagevermögen | 1 393 | | 1 198 | | 1 327 | | 1 279 | | 1 258 |
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| | Investitionen in Immaterielle Vermögensgegenstände und Sachanlagen | 134 | | 138 | | 161 | | 135 | | 137 |
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| | Abschreibungen auf Immaterielle Vermögensgegenstände und Sachanlagen | 133 | | 150 | | 156 | | 172 | | 152 |
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| | Bilanzsumme | 3 163 | | 3 191 | | 3 255 | | 3 257 | | 3 421 |
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| | Mitarbeiterzahl (Anzahl im Jahresdurchschnitt) | 8 667 | | 9 083 | | 9 053 | | 8 698 | | 8 655 |
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| | Festkapital und Kapitalrücklage der Wilh. Werhahn KG | 246 | | 246 | | 246 | | 246 | | 246 |
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| | Rücklagen im Konzern | 1 315 | | 1 144 | | 1 237 | | 1 327 | | 1 379 |
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| | Fremdanteile | 31 | | 31 | | 36 | | 38 | | 41 |
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| | Konzerneigenkapital | 1 592 | | 1 421 | | 1 519 | | 1 611 | | 1 666 |
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