condition mean min max 4 h after light 1096.671443 1044.30898 1149.033906 8 h after light 688.7906869999999 624.113788 753.467586 12 h after light 586.78679 555.385903 618.187677 4 h after dark 365.3873845 188.263827 542.510942 8 h after dark 218.1396915 152.011368 284.268015 12 h after dark 969.574138 969.574138 969.574138