Campagne Festubert 20.5 19.3 18 18 17.6 18.4 18.7 17 17.5 18 17 17.4 17.6 18 17 17 17.8 18.8 18.6 19 18.3 17.4 17.5 17.2 17.3 18 18.5 18.6 19 17.6 18 17.8 18 18.8 19.2 18.3 17.6 18 18.8 18.8 17.9 18.2 18 17.6 18 18 18 18 18 19 18.7 18.4 18.5 18.6 18.4 18.4 18.8 18.1 18.7 18.7 19.6 19 19 19.6 19 18.9 18.4 18.5 19 20.5