condition mean min max 0 h after light 12.6662 12.5314 12.801 4 h after light 7.4847649999999994 7.26439 7.70514 8 h after light 9.196674999999999 8.73549 9.65786 4 h after dark 11.73715 11.2746 12.1997 8 h after dark 9.76084 9.23228 10.2894 12 h after dark 11.116865 9.93823 12.2955