condition mean min max 4 h after light 9.96832 9.74485 10.11621 8 h after light 9.977866666666667 9.730960000000001 10.123330000000001 12 h after light 9.90658 9.64135 10.1138 4 h after dark 9.773983333333334 9.36411 10.12068 8 h after dark 9.64937 9.36416 9.83665 12 h after dark 9.3407 8.930819999999999 9.60165