condition mean min max 4 h after light 12.358550000000001 11.2818 13.4353 8 h after light 10.88525 10.7546 11.0159 12 h after light 15.27625 14.7153 15.8372 4 h after dark 20.431633333333334 19.0526 21.979 8 h after dark 27.7549 25.4276 29.275 12 h after dark 14.723333333333333 13.9028 15.3889