condition mean min max 0 h after light 14.911750000000001 14.3968 15.4267 4 h after light 13.5723 12.9151 14.2295 8 h after light 21.60245 19.7875 23.4174 4 h after dark 27.06025 20.8149 33.3056 8 h after dark 17.8751 16.6385 19.1117 12 h after dark 15.0869 13.6492 16.5246