condition	mean	min	max
0 h after light	14.77055	13.7024	15.8387
4 h after light	12.159600000000001	11.4314	12.8878
8 h after light	14.364165	8.34243	20.3859
4 h after dark	18.6744	16.5631	20.7857
8 h after dark	19.305300000000003	14.5333	24.0773
12 h after dark	18.74075	18.5344	18.9471