condition	mean	min	max
4 h after light	9.120112500000001	8.6363	9.603925
8 h after light	8.5891575	7.847117	9.331198
12 h after light	8.17156	7.220675	9.122445
4 h after dark	9.203349	8.820302	9.586396
8 h after dark	9.391467500000001	9.195765	9.58717
12 h after dark	8.6363	8.6363	8.6363