condition mean min max 3 h after light 9.869703333333334 8.17341 11.2146 6 h after light 9.590983333333334 7.5918 11.7392 9 h after light 9.105423333333334 8.28438 10.3139 12 h after light 11.0317625 9.75225 11.7949 3 h after dark 14.2713 12.9342 15.5142 6 h after dark 18.321166666666667 15.3724 21.1504 9 h after dark 16.1732 15.439 17.1369 12 h after dark 11.29015 10.933 11.6473