condition mean min max 4 h after light 3.135465 2.58234 3.68859 8 h after light 1.1489850000000001 1.07023 1.22774 12 h after light 1.1717235000000001 0.847677 1.49577 4 h after dark 1.88165 1.62582 2.03017 8 h after dark 1.98645 1.52474 2.33832 12 h after dark 2.8342733333333334 2.39013 3.47217