condition	mean	min	max
4 h after light	73.4564	59.9517	86.9611
8 h after light	40.749700000000004	38.5252	42.9742
12 h after light	20.848300000000002	19.203	22.4936
4 h after dark	18.32515	15.0526	21.5977
8 h after dark	18.0331	17.7633	18.3029
12 h after dark	41.25325	39.9255	42.581