condition mean min max 4 h after light 0.787867 0.488423 1.07486 8 h after light 1.0001426666666666 0.436921 1.72729 12 h after light 1.173048 0.793564 1.65369 4 h after dark 1.161835 0.856345 1.33293 8 h after dark 1.0688723333333334 0.680417 1.37249 12 h after dark 0.915422 0.767632 1.13893