condition mean min max 0 h after light 13.6738 11.4407 15.9069 4 h after light 10.04406 8.24382 11.8443 8 h after light 8.59939 8.27226 8.92652 4 h after dark 10.83745 10.6154 11.0595 8 h after dark 9.885715 9.23913 10.5323 12 h after dark 13.78885 13.0343 14.5434