condition	mean	min	max
4 h after light	5.522985	4.94472	6.10125
8 h after light	6.7909299999999995	6.5091	7.07276
12 h after light	7.568335	7.26201	7.87466
4 h after dark	11.60775	11.0886	12.1269
8 h after dark	9.142465	8.59831	9.68662
12 h after dark	8.0889	7.77779	8.40001