condition mean min max 2 h after light 0.0 0.0 0.0 6 h after light 1.05257 0.0 2.78174 10 h after light 0.28607 0.0 1.71642 14 h after light 0.34511166666666665 0.0 2.07067 18 h after light 0.0 0.0 0.0 2 h after dark 0.0 0.0 0.0