condition	mean	min	max
4 h after light	5.919063333333333	5.79102	6.074269999999999
8 h after light	5.99698	5.97633	6.01125
12 h after light	6.38584	6.18125	6.6544300000000005
4 h after dark	6.045306666666667	5.87113	6.18614
8 h after dark	5.98327	5.7695300000000005	6.1343
12 h after dark	6.0454099999999995	6.0163199999999994	6.06841