condition	mean	min	max
4 h after light	9.1790345	8.870056	9.488013
8 h after light	8.6782515	8.335376	9.021127
12 h after light	8.6995665	8.368076	9.031057
4 h after dark	9.161699500000001	8.850259	9.47314
8 h after dark	8.6530685	8.153967	9.15217
12 h after dark	8.733548	8.733548	8.733548