condition	mean	min	max
4 h after light	6.123233333333333	5.9545900000000005	6.3852400000000005
8 h after light	6.177083333333334	6.0381800000000005	6.37094
12 h after light	6.148063333333334	6.10723	6.19263
4 h after dark	6.15085	6.053780000000001	6.2903
8 h after dark	6.2097999999999995	6.0642	6.38814
12 h after dark	5.968853333333333	5.76446	6.16564