condition	mean	min	max
4 h after light	7.511993333333334	7.2476199999999995	7.7637100000000006
8 h after light	7.80197	7.61982	7.986339999999999
12 h after light	7.610586666666667	7.47865	7.760160000000001
4 h after dark	7.553509999999999	7.48137	7.5959699999999994
8 h after dark	7.35175	7.20075	7.48654
12 h after dark	7.40124	7.087439999999999	7.56033