condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.00167315 0.0 0.0033463 12 h after light 0.0 0.0 0.0 4 h after dark 0.0008014733333333333 0.0 0.00240442 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0