condition mean min max 4 h after light 534.838713 454.792987 614.884439 8 h after light 849.6858460000001 743.078211 956.293481 12 h after light 930.0275915 894.517789 965.537394 4 h after dark 914.8638875 863.511786 966.215989 8 h after dark 789.355671 618.390553 960.320789 12 h after dark 399.687635 399.687635 399.687635