condition mean min max 2 h after light 0.46469166666666667 0.0 1.42382 6 h after light 4.487661666666667 1.96112 8.93571 10 h after light 2.0094595 0.0 5.85749 14 h after light 2.637062 0.0 5.734 18 h after light 2.573881 0.0 9.81183 2 h after dark 1.3968673333333332 0.0 3.64938