condition mean min max 0 h after light 153.7695 151.894 155.645 4 h after light 163.7665 150.146 177.387 8 h after light 159.499 157.839 161.159 4 h after dark 154.892 142.012 167.772 8 h after dark 143.79149999999998 142.233 145.35 12 h after dark 148.913 139.723 158.103