condition mean min max 0 h after light 16.3194 15.8521 16.7867 2 h after light 12.46315 11.9486 12.9777 4 h after light 11.2466 10.8977 11.5955 8 h after light 8.347675 8.13587 8.55948 12 h after light 13.8492 13.2788 14.4196 2 h after dark 17.87735 14.8341 20.9206 4 h after dark 16.2244 15.8512 16.5976 8 h after dark 17.653 17.1701 18.1359 12 h after dark 15.630799999999999 15.011 16.2506