€ million
2007
€ million
2006
€ million
2005
Net cash flow from operating activities 3 876 4 511 4 353
Net cash flow from/(used in) investing activities (623) 1 155 515
Net cash flow from/(used in) financing activities (3 009) (6 572) (4 821)
Net increase/(decrease) in cash and cash equivalents 244 (906) 47

Cash and cash equivalents at 31 December 2007 were €0.2 billion higher than at 31 December 2006. Net cash flow from operating activities, at €3.9 billion, was €0.6 billion lower than in 2006 because of higher cash costs of restructuring and increased income tax payments. Income tax paid was €0.2 billion higher than in 2006 because of the timing of payments. Taking the last two years together, cash tax paid was at a similar level to the tax charges in the income statement. There was a further small improvement in working capital.

The movement of €1.8 billion in net cash flow used in investing activities when compared with 2006 is explained by the decrease in completed disposal activity in the year and a small increase in net capital expenditure. The increase in net capital expenditure was entirely in Asia Africa, supporting the priority for growth in the region.

The decrease of €3.6 billion cash used in financing activities from 2006 is a consequence of the changes in financial liabilities of €4.6 billion, offset by the impact of the treasury stock movement. The net €1.1 billion movement in treasury stocks reflects the net effect of share buy-backs of €1.5 billion and the exercise of share options of €(0.4) billion.

At 31 December 2007, the net debt position was €8.3 billion, an increase of €0.8 billion compared with 2006. The increase is due to the fact that cash generation was more than offset by the outflows relating to dividends, share buy-backs and additional pension funding. We also benefited from the appreciation of the euro against the US dollar.