condition mean min max 4 h after light 10.46994 10.28894 10.62352 8 h after light 10.51793 10.40794 10.64306 12 h after light 11.147146666666666 11.00335 11.225539999999999 4 h after dark 10.7057 10.6092 10.87006 8 h after dark 10.057763333333334 9.71983 10.27431 12 h after dark 9.661159999999999 9.40325 9.86709