condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.255889 0.0 0.767667 12 h after light 0.17881533333333333 0.0 0.536446 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0