condition	mean	min	max
4 h after light	9.270495	8.97839	9.5626
8 h after light	8.90019	8.37242	9.42796
12 h after light	11.90355	11.674	12.1331
4 h after dark	16.879199999999997	16.2614	17.497
8 h after dark	15.33685	14.8642	15.8095
12 h after dark	12.24155	11.9131	12.57