condition	mean	min	max
4 h after light	3.7210366666666665	3.68004	3.7491199999999996
8 h after light	3.7374933333333336	3.6629300000000002	3.8081699999999996
12 h after light	3.6899533333333334	3.6316599999999997	3.7456400000000003
4 h after dark	3.8068433333333336	3.7111300000000003	3.9420599999999997
8 h after dark	3.713346666666667	3.61164	3.76818
12 h after dark	3.78494	3.7537300000000005	3.84085