condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.04072675 0.0 0.0814535 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 0.03410766666666667 0.0 0.102323