condition	mean	min	max
4 h after light	9.906787	9.124547	10.689027
8 h after light	8.101417000000001	8.045965	8.156869
12 h after light	7.983361	7.939951	8.026771
4 h after dark	7.618714499999999	7.48154	7.755889
8 h after dark	8.4440755	8.130646	8.757505
12 h after dark	8.604494	8.604494	8.604494