condition	mean	min	max
4 h after light	5.621425	5.58408	5.65877
8 h after light	8.542415	8.31297	8.77186
12 h after light	8.21395	8.1211	8.3068
4 h after dark	10.8458	10.6663	11.0253
8 h after dark	8.116895	8.09442	8.13937
12 h after dark	6.562945	6.15583	6.97006