condition mean min max 4 h after light 12.5937135 9.650615 15.536812 8 h after light 9.3947635 9.138912 9.650615 12 h after light 9.928990500000001 9.650615 10.207366 4 h after dark 9.650615 9.650615 9.650615 8 h after dark 10.024148 9.650615 10.397681 12 h after dark 9.469102 9.469102 9.469102