additive car effect 1 a 19.5 1 a 20.3 1 a 19.4 1 a 21.3 2 a 18 2 a 17.8 2 a 17.8 2 a 15.8 3 a 16.8 3 a 17 3 a 16.8 3 a 15.5 1 b 21.1 1 b 21.2 1 b 20.4 1 b 20.6 2 b 21.8 2 b 21.2 2 b 22.7 2 b 23.1 3 b 21.5 3 b 20.2 3 b 18.6 3 b 20.3 1 d 21.1 1 d 22.8 1 d 21.7 1 d 21.6 2 d 20.5 2 d 20.1 2 d 21.2 2 d 20.9 3 d 18.5 3 d 19.6 3 d 20.3 3 d 18.8