condition mean min max 4 h after light 5.365413333333334 5.1099 5.79586 8 h after light 5.29582 5.15236 5.37528 12 h after light 5.333796666666666 5.12819 5.687469999999999 4 h after dark 5.1909366666666665 4.991280000000001 5.33702 8 h after dark 5.10846 4.92422 5.2045 12 h after dark 5.344226666666667 5.04237 5.76768