condition mean min max 4 h after light 12.128953 10.572912 13.684994 8 h after light 11.4984755 11.196975 11.799976 12 h after light 12.775316 10.829067 14.721565 4 h after dark 12.554195499999999 11.573143 13.535248 8 h after dark 9.6089375 8.815425 10.40245 12 h after dark 10.797581 10.797581 10.797581