condition	mean	min	max
4 h after light	3.106755	2.71599	3.49752
8 h after light	4.40437	4.27107	4.53767
12 h after light	8.385185	7.81736	8.95301
4 h after dark	16.5609	16.133	16.9888
8 h after dark	9.55461	8.76572	10.3435
12 h after dark	7.139620000000001	7.12016	7.15908