Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Date | Pos. | Name | From | Fee |
| --- | --- | --- | --- | --- |
| 27 June 2007 | DF | Aaron Hughes | Aston Villa | £1,000,000 |
| 5 July 2007 | MF | Steven Davis | Aston Villa | £4,000,000 |
| 9 July 2007 | FW | Diomansy Kamara | West Bromwich Albion | £6,000,000 |
| 12 July 2007 | DF | Chris Baird | Southampton | £3,035,000 |
| 13 July 2007 | FW | David Healy | Leeds United | £1,500,000 |
| 13 July 2007 | DF | Paul Konchesky | West Ham | £3,250,000 |
| 19 July 2007 | MF | Lee Cook | QPR | £2,500,000 |
| 4 August 2007 | MF | Adrian Leijer | Melbourne Victory | Undisclosed |
| 8 August 2007 | DF | Hameur Bouazza | Watford | £3,000,000 |
| 23 August 2007 | GK | Kasey Keller | Borussia Mönchengladbach | Free |
| 30 August 2007 | DF | Nathan Ashton | Unattached | Free |
| 31 August 2007 | FW | Shefki Kuqi | Crystal Palace | Loan |
| 31 August 2007 | MF | Danny Murphy | Tottenham Hotspur | Loan |
| 31 August 2007 | MF | Seol Ki-Hyeon | Reading | Undisclosed |
| 31 August 2007 | DF | Dejan Stefanovic | Portsmouth | £1,000,000 |
Question:
what is the number of dfs?
Answer:
6