Table:
text: João Barbosa
24 Hours of Le Mans results
24 Hours of Le Mans results
Year_ Team Co_Drivers Class_ Laps Pos_ Class_Pos_
2004 Rollcentre Racing Martin Short Rob Barff LMP1 230 DNF DNF
2005 Rollcentre Racing Martin Short Vanina Ickx LMP1 318 16th 8th
2006 Rollcentre Racing Martin Short Stuart Moseley LMP2 294 20th 5th
2007 Rollcentre Racing Stuart Hall Martin Short LMP1 347 4th 4th
2008 Rollcentre Racing Stéphan Grégoire Vanina Ickx LMP1 352 11th 10th
2009 Pescarolo Sport Christophe Tinseau Bruce Jouanny LMP1 368 8th 8th
2011 Level 5 Motorsports Scott Tucker Christophe Bouchut LMP2 319 10th 3rd

Question: For João Barbosa, what is the average number of laps with a Dnf position?