condition mean min max 0 h after light 8.73294 8.18012 9.28576 4 h after light 6.308260000000001 6.12917 6.48735 8 h after light 7.50057 7.13779 7.86335 4 h after dark 12.164200000000001 11.669 12.6594 8 h after dark 10.95885 10.5522 11.3655 12 h after dark 8.168695 6.93178 9.40561