condition	mean	min	max
4 h after light	7.4764	7.252192	7.700608
8 h after light	8.4419215	7.078238	9.805605
12 h after light	8.379352	8.047624	8.71108
4 h after dark	8.3853895	7.646142	9.124637
8 h after dark	7.554363	7.514383	7.594343
12 h after dark	6.542797	6.542797	6.542797