condition mean min max 0 h after light 9.247905 8.60185 9.89396 4 h after light 15.4441 13.7088 17.1794 8 h after light 14.413049999999998 12.0239 16.8022 4 h after dark 15.22195 15.064 15.3799 8 h after dark 16.806800000000003 14.3368 19.2768 12 h after dark 8.037015 5.94713 10.1269