condition mean min max 4 h after light 10.11264 9.588330000000001 10.59349 8 h after light 6.523686666666666 6.046 6.96709 12 h after light 6.41278 6.07655 6.63875 4 h after dark 5.84 5.654380000000001 6.15066 8 h after dark 8.589413333333335 7.77885 9.59706 12 h after dark 11.291033333333333 11.11618 11.41806