condition mean min max 2 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 10 h after light 0.0 0.0 0.0 14 h after light 0.019197833333333334 0.0 0.115187 18 h after light 0.014712266666666666 0.0 0.0882736 2 h after dark 0.0 0.0 0.0