condition mean min max 3 h after light 8.56945 5.74502 10.3084 6 h after light 5.77262 3.52597 7.52764 9 h after light 9.084796666666666 7.20076 10.1336 12 h after light 14.989466666666667 11.8432 18.1387 3 h after dark 18.341900000000003 14.6871 21.0526 6 h after dark 15.350900000000001 11.7149 20.0512 9 h after dark 13.134153333333334 9.56386 18.6072 12 h after dark 9.311993333333334 4.77984 15.1898