condition	mean	min	max
4 h after light	7.681938499999999	7.5084	7.855477
8 h after light	7.9359595	7.671887	8.200032
12 h after light	7.6216775	7.197633	8.045722
4 h after dark	7.5797345	7.487582	7.671887
8 h after dark	7.7208369999999995	7.671887	7.769787
12 h after dark	8.817977	8.817977	8.817977