circuit confinement 67.2 67.7 68.9 70.9 71.1 74 73.9 77 77.2 77 75.8 80.3 79.9 77.2 80.3 83.1 81.7 79.4 79.8 81.6 81.6 80.3 78.1 70.9 71.1 65.7 60.5 58.9 58.8 56 61.3 61.3 58.4 60 60.3 61 62.4 64.9 65 65.1 67.2