condition	mean	min	max
4 h after light	4.326013333333334	4.24054	4.3951400000000005
8 h after light	4.4258733333333335	4.2984800000000005	4.60944
12 h after light	4.31978	4.273540000000001	4.36419
4 h after dark	4.39196	4.273280000000001	4.56982
8 h after dark	4.318083333333333	4.22169	4.467219999999999
12 h after dark	4.33413	4.17823	4.49579