condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0549135 0.0 0.109827 12 h after light 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 3.8666666666666665e-09 0.0 1.16e-08