candidate: There were five types of stages , with respect to how many points could be earned for the points classification in the Tour de France : Normal stages : stages 1 , 2 , 4 , 6 , 7 , 8 , 16 , 19 , 21 Mountain stages : stages 9 , 10 , 11 , 12 , 13 , 14 , 15 , 20 Long time trials : stages 3 and 17 Team time trials : stage 5a Short time trials : prologue and stage 22a Half stages : stages 5b , 18a , 18b , 18c and 22b