condition mean min max 1 h after light 9.954879943 9.291277156 10.61848273 3 h after light 11.899630160333334 9.803054601 14.28093843 5 h after light 15.204237703333334 14.32235002 15.77703908 7 h after light 17.756836843333335 16.26787441 19.19333388 9 h after light 17.523532523333333 17.1049055 18.12245243 11 h after light 15.494722503333334 13.99508225 17.02695633 13 h after light 16.607159036666665 15.44698735 18.79463512 15 h after light 13.91161713 12.81248664 14.82133243 1 h after dark 17.15909093 15.70739654 18.52856501 3 h after dark 15.333515343333334 14.66106329 16.57241879 5 h after dark 14.920211396666666 13.24391691 15.80922941 7 h after dark 17.437936676666666 14.689737 20.24487682