condition mean min max 4 h after light 0.559672 0.44565 0.673694 8 h after light 0.6376105 0.365511 0.90971 12 h after light 1.1643035 0.884247 1.44436 4 h after dark 2.4161200000000003 1.77326 3.05898 8 h after dark 1.331215 1.07063 1.5918 12 h after dark 1.0450725 0.718655 1.37149