condition mean min max 0 h after light 18.90685 17.1633 20.6504 2 h after light 13.5399 13.5332 13.5466 4 h after light 11.985700000000001 11.7858 12.1856 8 h after light 9.917415 9.66823 10.1666 12 h after light 19.368699999999997 19.1027 19.6347 2 h after dark 16.3861 16.095 16.6772 4 h after dark 16.6702 16.5255 16.8149 8 h after dark 21.5379 20.6741 22.4017 12 h after dark 19.034950000000002 18.974 19.0959