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:
| Pos | No | Driver | Team | Laps | Time/Retired | Grid | Points |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | 5 | Will Power | Team Australia | 73 | 1:45:58.568 | 7 | 31 |
| 2 | 21 | Neel Jani | PKV Racing | 73 | +2.972 | 9 | 28 |
| 3 | 9 | Justin Wilson | RSPORTS | 73 | +3.480 | 2 | 25 |
| 4 | 15 | Simon Pagenaud | Team Australia | 73 | +5.643 | 4 | 23 |
| 5 | 19 | Bruno Junqueira | Dale Coyne Racing | 73 | +20.738 | 5 | 21 |
| 6 | 14 | Robert Doornbos | Minardi Team USA | 72 | + 1 Lap | 12 | 19 |
| 7 | 28 | Ryan Dalziel | Pacific Coast Motorsports | 72 | + 1 Lap | 11 | 17 |
| 8 | 8 | Alex Tagliani | RSPORTS | 71 | + 2 Laps | 6 | 15 |
| 9 | 1 | Sébastien Bourdais | N/H/L Racing | 67 | Contact | 1 | 16 |
| 10 | 7 | Oriol Servia | Forsythe Racing | 56 | Contact | 3 | 11 |
| 11 | 2 | Graham Rahal | N/H/L Racing | 52 | Contact | 15 | 10 |
| 12 | 4 | Dan Clarke | Minardi Team USA | 43 | Contact | 13 | 9 |
| 13 | 34 | Jan Heylen | Conquest Racing | 1 | Contact | 8 | 8 |
| 14 | 3 | Paul Tracy | Forsythe Racing | 0 | Contact | 10 | 7 |
| 15 | 22 | Tristan Gommendy | PKV Racing | 0 | Contact | 14 | 6 |
| 16 | 11 | Katherine Legge | Dale Coyne Racing | 0 | Contact | 16 | 5 |
| 17 | 29 | Alex Figge | Pacific Coast Motorsports | 0 | Contact | 17 | 4 |
Question:
how many drivers completed the 2007 steelback grand prix?
Answer:
5