condition mean min max 0 h after light 11.032875 9.83295 12.2328 4 h after light 7.909815 5.76993 10.0497 8 h after light 8.36261 6.34942 10.3758 4 h after dark 10.95965 10.7523 11.167 8 h after dark 8.5923 7.43614 9.74846 12 h after dark 9.31849 9.04824 9.58874