condition	mean	min	max
4 h after light	6.869149999999999	6.68762	7.05068
8 h after light	5.04697	4.77374	5.3202
12 h after light	5.221455	4.82358	5.61933
4 h after dark	4.3758	4.33824	4.41336
8 h after dark	5.810905	5.24825	6.37356
12 h after dark	7.06155	6.94546	7.17764