Table:
text: 1973 Monte Carlo Rally
Itinerary
Stages of the 42ème Rallye Automobile de Monte-Carlo
Stage Start_time Stage_name Distance Winning_driver Time_ Avg_Speed Rally_leader
SS14 21:27 St. Sauveur - Beuil 1 24.00km Timo Makinen 18 m : 40 s 77.14km/h Jean-Claude Andruet
SS15 23:56 La Bollene - Le Moulinet 1 23.00km Jean-François Piot 21 m : 34 s 63.99km/h Ove Andersson
SS16 02:33 St. Sauveur - Beuil 2 24.00km Jean-Claude Andruet Jean-Pierre Nicolas 18 m : 24 s 78.26km/h Ove Andersson
SS17 05:02 La Bollene - Le Moulinet 2 23.00km Timo Makinen 21 m : 26 s 64.39km/h Jean-Claude Andruet
SS18 06:20 Col Banquettes - Col de la Modene 18.00km Jean-Claude Andruet 15 m : 11 s 71.13km/h Jean-Claude Andruet

text: 1973 Monte Carlo Rally
Itinerary
Stages of the 42ème Rallye Automobile de Monte-Carlo
Stage Start_time Stage_name Distance Winning_driver Time_ Avg_Speed Rally_leader
SS7 23:55 St. Jean-en-Royan 36.00km Jean-Claude Andruet 27 m : 37 s 78.21km/h Jean-Claude Andruet
SS8 03:28 St. Barthelemy 40.00km Bernard Darniche 30 m : 55 s 77.63km/h Jean-Claude Andruet
SS9 06:14 Savines 20.00km Bernard Darniche 14 m : 43 s 81.54km/h Jean-Claude Andruet
SS10 11:10 Col de la Porte 18.25km Cancelled Cancelled Cancelled Jean-Claude Andruet
SS11 11:31 La Cabanette 18.25km Cancelled Cancelled Cancelled Jean-Claude Andruet
SS12 19:00 Col de la Madone - Col Banquettes 18.00km Ove Andersson 15 m : 22 s 70.28km/h Jean-Claude Andruet
SS13 20:13 Le Moulinet - La Bollene 23.00km Harry Kallstrom 21 m : 50 s 63.21km/h Jean-Claude Andruet

text: 1973 Monte Carlo Rally
Itinerary
Stages of the 42ème Rallye Automobile de Monte-Carlo
Stage Start_time Stage_name Distance Winning_driver Time_ Avg_Speed Rally_leader
SS1 15:00 Col du Corobin 17.00km Sandro Munari Hannu Mikkola 13 m : 29 s 75.65km/h Sandro Munari
SS2 10:36 Pont des Miolans 26.00km Jean-Claude Andruet Jean-Luc Therier 19 m : 13 s 81.18km/h Hannu Mikkola
SS3 13:49 Laborel 20.00km Hannu Mikkola 15 m : 45 s 76.19km/h Hannu Mikkola
SS4 17:11 Burzet 50.00km Jean-Claude Andruet 38 m : 10 s 78.60km/h Jean-Claude Andruet
SS5 19:22 Le Moulinon 38.00km Bernard Darniche 27 m : 46 s 82.11km/h Jean-Claude Andruet
SS6 21:46 St. Bonnet le Froid 20.00km Sandro Munari 14 m : 51 s 80.81km/h Jean-Claude Andruet

Question: At the 1973 Monte Carlo Rally, what was the average speed over 18.00 km for the winner Jean-Claude Andruet?