condition mean min max 4 h after light 5.873905000000001 5.58758 6.16023 8 h after light 5.4174 5.10523 5.72957 12 h after light 6.206085 6.11393 6.29824 4 h after dark 7.0731850000000005 7.05022 7.09615 8 h after dark 6.405415 6.31858 6.49225 12 h after dark 6.92512 6.71669 7.13355