condition mean min max 4 h after light 75.2535 65.9124 84.5946 8 h after light 59.03185 56.4114 61.6523 12 h after light 59.7106 59.1951 60.2261 4 h after dark 70.35913333333333 66.1308 74.4221 8 h after dark 80.3768 79.0079 81.9698 12 h after dark 72.78283333333333 69.8684 77.9195