condition mean min max 3 h after light 15.7079 12.7637 19.1939 6 h after light 15.371 13.2948 16.7041 9 h after light 13.8569 11.2987 15.6045 12 h after light 15.475433333333333 14.8715 16.2721 3 h after dark 24.016533333333335 19.0666 26.7377 6 h after dark 20.63713333333333 19.3357 21.5232 9 h after dark 16.988599999999998 15.353 20.0702 12 h after dark 15.834200000000001 12.5166 17.6654