Group Five Year Financial Review | | Year ended 31 December |  | | 2007
£m | 2008
£m | 2009 £m | 2010
£m | 2011
£m |  | | Revenue | 2,379.1 | 2,560.1 | 2,503.2 | 2,676.5 | 2,852.3 | | Adjusted* operating profit | 41.7 | 42.1 | 53.9 | 64.4 | 72.5 | | Adjusted* Profit before tax | 42.7 | 43.1 | 54.2 | 66.1 | 74.2 | | Profit for the year | 28.9 | 37.3 | 37.7 | 50.3 | 61.0 | | Adjusted* diluted earnings per share | 18.5p | 21.0p | 27.7p | 33.0p | 37.4p | | Net cash/(debt) excluding CSF | (16.2) | 4.6 | 86.4 | 139.4 | 136.8 | | Year-end headcount | 9,877 | 10,220 | 10,296 | 10,566 | 11,626 |  |
| | * Before amortisation of acquired intangibles and exceptional items. Adjusted operating profit is stated after charging finance costs on customer-specific financing. The adjusted diluted EPS also excludes the effects of exceptional items within the tax charge for the year when applicable. |
| Group Summary Balance Sheet | | Year ended 31 December |  | | 2007
£m | 2008
£m | 2009
£m | 2010
£m | 2011
£m |  | | Tangible assets | 116.4 | 123.3 | 105.3 | 88.9 | 98.3 | | Intangible assets | 45.2 | 51.6 | 73.0 | 78.5 | 104.2 | | Investments | – | – | – | – | 0.5 | | Deferred tax asset | 8.2 | 16.7 | 16.4 | 15.5 | 15.9 | | Inventories | 110.5 | 105.8 | 67.1 | 81.6 | 97.4 | | Trade and other receivables | 454.2 | 529.5 | 475.6 | 471.1 | 549.0 | | Prepayments and accrued income | 61.4 | 97.7 | 85.3 | 84.2 | 90.1 | | Forward currency contracts | (0.4) | (0.6) | 0.7 | 0.6 | (0.2) | | Current asset investment | – | – | – | – | 10.0 | | Cash | 29.2 | 53.4 | 108.0 | 159.3 | 128.4 | | Current liabilities | (496.1) | (602.6) | (557.5) | (588.2) | (665.9) | | Non-current liabilities | (50.4) | (53.6) | (35.5) | (22.0) | (24.0) | | Net assets | 278.1 | 321.1 | 338.6 | 369.6 | 403.7 |
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