condition mean min max 4 h after light 97.6 97.6 97.6 8 h after light 112.55000000000001 95.8 129.3 12 h after light 97.80000000000001 96.2 99.4 4 h after dark 91.25 61.0 121.5 8 h after dark 106.6 85.5 127.7 12 h after dark 115.05 105.0 125.1