condition mean min max 4 h after light 11.853548499999999 11.75081 11.956287 8 h after light 9.4899725 9.189809 9.790136 12 h after light 10.4911265 10.290989 10.691264 4 h after dark 12.378494499999999 11.767171 12.989818 8 h after dark 11.3704705 10.691264 12.049677 12 h after dark 10.391312 10.391312 10.391312