condition mean min max 4 h after light 183.5 183.5 183.5 8 h after light 104.6 94.7 114.5 12 h after light 90.85 82.2 99.5 4 h after dark 89.30000000000001 85.4 93.2 8 h after dark 104.0 88.0 120.0 12 h after dark 109.35 86.6 132.1