condition mean min max 4 h after light 6.93595 5.2284 8.6435 8 h after light 7.570415 7.44614 7.69469 12 h after light 13.08345 12.6571 13.5098 4 h after dark 25.2865 23.9764 26.1546 8 h after dark 18.229300000000002 15.9572 19.5009 12 h after dark 11.204556666666667 9.99237 13.0559