condition mean min max 0 h after light 14.2365 12.5117 15.9613 2 h after light 12.0914 11.2623 12.9205 4 h after light 14.96335 14.7497 15.177 8 h after light 12.781 11.669 13.893 12 h after light 19.1629 17.4377 20.8881 2 h after dark 17.9447 17.8745 18.0149 4 h after dark 15.9343 15.045 16.8236 8 h after dark 17.4854 16.6766 18.2942 12 h after dark 14.9819 14.1204 15.8434