condition mean min max 0 h after light 12.85965 12.4666 13.2527 4 h after light 23.53015 20.8989 26.1614 8 h after light 25.4032 21.4996 29.3068 4 h after dark 25.42315 22.5405 28.3058 8 h after dark 22.023449999999997 21.1392 22.9077 12 h after dark 16.968449999999997 12.3356 21.6013