condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.7418615 0.727748 0.755975 12 h after light 0.01884235 0.0 0.0376847 4 h after dark 0.0 0.0 0.0 8 h after dark 0.023670733333333333 0.0 0.0710122 12 h after dark 0.016525233333333333 0.0 0.0495757