condition mean min max 4 h after light 54.8 54.8 54.8 8 h after light 60.0 57.5 62.5 12 h after light 31.7 28.4 35.0 4 h after dark 59.55 55.7 63.4 8 h after dark 82.30000000000001 80.9 83.7 12 h after dark 71.1 60.6 81.6