condition	mean	min	max
4 h after light	5.007765	4.92253	5.093
8 h after light	4.4287399999999995	4.25737	4.60011
12 h after light	6.9195899999999995	6.78378	7.0554
4 h after dark	8.1618	7.53026	8.79334
8 h after dark	8.754655	8.5735	8.93581
12 h after dark	6.4908850000000005	6.24583	6.73594