condition mean min max 4 h after light 10.15636 9.886439999999999 10.31766 8 h after light 10.123393333333334 9.794830000000001 10.304160000000001 12 h after light 10.211283333333332 9.879539999999999 10.39268 4 h after dark 10.0947 9.71836 10.40902 8 h after dark 10.15747 9.73082 10.53459 12 h after dark 10.05335 9.64073 10.28819