condition mean min max 0 h after light 10.5546 9.6448 11.4644 2 h after light 12.0168 11.9562 12.0774 4 h after light 31.59935 30.4305 32.7682 8 h after light 20.97025 20.803 21.1375 12 h after light 27.94545 25.1152 30.7757 2 h after dark 18.06495 16.394 19.7359 4 h after dark 12.4082 11.9254 12.891 8 h after dark 12.81515 11.3002 14.3301 12 h after dark 12.28975 11.6031 12.9764