condition	mean	min	max
4 h after light	7.936489	7.871908	8.00107
8 h after light	8.3550005	8.322675	8.387326
12 h after light	8.845779	8.322675	9.368883
4 h after dark	8.735163	7.336431	10.133895
8 h after dark	8.940261	8.848107	9.032415
12 h after dark	8.505613	8.505613	8.505613