condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.17822466666666667 0.0 0.534674 12 h after light 0.0292845 0.0 0.0878535 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