condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 4 h after dark 0.13406500000000002 0.0 0.402195 8 h after dark 3.633333333333333e-09 0.0 1.09e-08 12 h after dark 0.0 0.0 0.0