condition mean min max 0 h after light 0.0 0.0 0.0 4 h after light 0.0 0.0 0.0 8 h after light 1.592635 0.0 3.18527 4 h after dark 1.542675 0.0 3.08535 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0