condition mean min max 2 h after light 7.403556666666667 6.12533 8.91817 6 h after light 6.9177100000000005 5.82168 8.77241 10 h after light 6.483466666666667 5.22918 8.39395 2 h after dark 6.9326799999999995 6.70174 7.24743 6 h after dark 8.40998 8.11295 8.87349 10 h after dark 9.364843333333333 8.79375 10.1307