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:
| Year | Team | Co-Drivers | Class | Laps | Pos. | Class Pos. |
| --- | --- | --- | --- | --- | --- | --- |
| 1981.0 | Martini Racing | Beppe Gabbiani | Gr.5 | 47.0 | DNF | DNF |
| 1998.0 | Gulf Team Davidoff GTC Competition | Dr. Thomas Bscher Rinaldo Capello | GT1 | 228.0 | DNF | DNF |
| 1999.0 | Audi Sport Team Joest | Frank Biela Didier Theys | LMP | 360.0 | 3rd | 2nd |
| 2000.0 | Audi Sport Team Joest | Tom Kristensen Frank Biela | LMP900 | 368.0 | 1st | 1st |
| 2001.0 | Audi Sport Team Joest | Tom Kristensen Frank Biela | LMP900 | 321.0 | 1st | 1st |
| 2002.0 | Audi Sport Team Joest | Tom Kristensen Frank Biela | LMP900 | 375.0 | 1st | 1st |
| 2003.0 | Champion Racing | Stefan Johansson JJ Lehto | LMP900 | 372.0 | 3rd | 1st |
| 2004.0 | ADT Champion Racing | JJ Lehto Marco Werner | LMP1 | 368.0 | 3rd | 3rd |
| 2005.0 | ADT Champion Racing | Frank Biela Allan McNish | LMP1 | 364.0 | 3rd | 3rd |
| 2006.0 | Audi Sport Team Joest | Frank Biela Marco Werner | LMP1 | 380.0 | 1st | 1st |
| 2007.0 | Audi Sport Team Joest | Frank Biela Marco Werner | LMP1 | 369.0 | 1st | 1st |
| 2008.0 | Audi Sport North America | Frank Biela Marco Werner | LMP1 | 367.0 | 6th | 6th |
| 2010.0 | Drayson Racing | Paul Drayson Jonny Cocker | LMP1 | 254.0 | NC | NC |
Question:
What year did finish 1st in LMP1 class?
Answer:
2006.5