What the average grid driver Christian Vietoris who has less than 12 lap?
Team Driver Laps Time Grid
2007–08 A1 Grand Prix of Nations, Netherlands
13541456
text text real text real
2-13541456-3
Sprint Race
Sprint Race
South Africa Adrian Zaugg 12 18'01.087 1
France Loïc Duval 12 +7.532 2
Netherlands Jeroen Bleekemolen 12 +8.097 5
Mexico Salvador Durán 12 +8.205 3
Switzerland Neel Jani 12 +8.581 4
Germany Christian Vietoris 12 +10.344 6
Great Britain Oliver Jarvis 12 +10.566 10
Ireland Ralph Firman 12 +12.168 7
New Zealand Jonny Reid 12 +13.934 8
India Narain Karthikeyan 12 +18.516 11
Portugal João Urbano 12 +24.967 9
Italy Enrico Toccacelo 12 +25.717 13
Brazil Sérgio Jimenez 12 +26.044 12
Lebanon Chris Alajajian 12 +34.547 18
Czech Republic Erik Janis 12 +35.268 14
Malaysia Alex Yoong 12 +35.895 20
China Cong Fu Cheng 12 +36.298 15
Pakistan Adam Langley-Khan 12 +36.510 16
Canada James Hinchcliffe 12 +39.509 21
Indonesia Satrio Hermanto 12 +47.932 22
Australia Ian Dyk 12 +47.983 17
USA Buddy Rice 12 +48.208 19
SELECT AVG Grid FROM table WHERE Driver = christian vietoris AND Laps < 12
christian vietoris 12