Tronçon 4 76.4 79.2 81.9 83.4 84.1 84.9 82.5 83 79.8 81 81.3 78 79.1 79.2 79.9 79.5 80.4 83.7 90.8 97 95.2 89.1 85.3 84.5 87.3 79.2 72.4 69.8 61.8 51.9 47.1 46 47.1 47.7 46.6 46 46.3 47.5 46.6 47 46.8 47.9 48.6 48.5 60.3 63.6 62.5 66.2 60.7 64.3 63.2 67.8 72.7 77 79.6 80 81.6 86 90.2 90.4 93.4 97.7 93.6 92.8 88 89.3 90 90 89.6 88.1 88.1 85.7 85.5 85.3 85.4 86.1 86.1 87 91.6 91.9 92 93 93.6 86.9 84.4 83.9 83.9 84 84 79 74.4 68.8 54.7 41.2 39 50.1 59 60.4