condition mean min max 0 h after light 0.944634 0.943792 0.945476 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 4 h after dark 0.1163235 0.0 0.232647 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0