condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.11669933333333334 0.0 0.244101 12 h after light 0.313811 0.0 0.481559 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.18257566666666666 0.0 0.547727