condition mean min max 4 h after light 50.7 50.7 50.7 8 h after light 47.05 30.4 63.7 12 h after light 75.0 69.1 80.9 4 h after dark 48.7 20.6 76.8 8 h after dark 82.80000000000001 70.4 95.2 12 h after dark 65.45 48.5 82.4