condition	mean	min	max
4 h after light	10.70252	8.97204	12.433
8 h after light	8.470115	8.32447	8.61576
12 h after light	8.822685	8.57302	9.07235
4 h after dark	11.1019	10.8717	11.55
8 h after dark	13.210933333333333	12.7398	13.9294
12 h after dark	12.007466666666666	11.6234	12.2662