condition mean min max 4 h after light 0.0074423 0.0 0.0148846 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 4 h after dark 8.9e-07 0.0 2.67e-06 8 h after dark 0.008503566666666667 0.0 0.0255107 12 h after dark 0.0065991 0.0 0.0197973