GRP pays nantais section sud 4.8 4.8 5.8 6.4 3.8 4.2 6 5.3 5.4 6 5.9 6.8 5 4 4.5 4.3 3.3 3.5 10.4 15.3 10 3.6 5.7 4.7 3.3 6.9 5.9 4 4.5 2.2 2.7 2.5 4.9 7.1