condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.04316166666666666 0.0 0.129485 12 h after light 0.028368 0.0 0.085104 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.05435616666666667 0.0 0.110311